This point is controversial only because of the ever complicated expanding Phoenix mythos that has changed every decade almost. When Excalibur was written, it was the definitive Phoenix mythos content creator for the late 80's early 90's. Outside of Inferno and the Celestial issue with Jean, anything Phoenix related and mythos building came directly from Alan Davis in Excalibur and was solely related to Rachel. The fact that they couldn't pull the Phoenix from Rachel as they had fully bonded without having cosmic consequences. The fact that all celestial and cosmic being recognized Rachel as the heir of the Phoenix and naming her 'Starchilde'. The anti-Phoenix and Feron. Rachel being named by the Phoenix Force as the 'one true Phoenix. Now and forever'. All of that is and was canon. The issue then becomes when a new writer does their take on the Phoenix and ignores all of the canon before it. Morrison chose to ignore Excalibur and Rachel's connection to do his story. Which is fine and he can (and did) do that, but it confuses readers who knew of Rachel as Phoenix. From there the editorial mandate that Rachel 'isn't/wasn't' Phoenix started, which Claremont had to follow as he once again moved Rachel into a legacy character for Jean. It caused issues for the character as well as fans as he regressed Rachel to restart his legacy build of Jean for her. With the concept of the Phoenix also changed from when Rachel was host, they had to navigate things differently as Rachel's experience with it was fundamentally different than Jean's.Luckily despite some of the Excalibur craziness with the Phoenix mythos in the Jean Grey solo the Phoenix force tells Teen Jean that Jean Grey was the perfect host and vessel and that her influence and power was unmatched. Of course that is just the latest continuity. It could change the next time the Phoenix is used in a major way.
As stories continued to evolve and change, so did the Phoenix to match editorial mandates. The advent of AvX made the Phoenix Force a fundamentally destructive one, whereas before many across the MU knew it to be an ally. Because of the new mandate, and heavy reliance on contradictory canon between Claremont's DPS and Morrison's new hot take, Rachel's role as the balance and Phoenix heir was problematic to the story. Hence her being related to outlier tie-ins and not a player in the main story. The fact that the Phoenix Force said Jean was the perfect vessel isn't surprising, but it isn't the first time it's told someone they are the best host. And like you say, this could again change under the next writer. But to be honest this sentence feels hostile in the terms you use both to the character and fans as you relegate any canon and character development for Rachel and the Phoenix mythos as 'Excalibur craziness'. You don't need to do that to say, "Also once again the narrative changed in the Jean Grey solo as Jean being the perfect host". Aside from my distaste of that series in general, I accept what it says without needing to slight a character.
Nah, you're right. Jean was Phoenix first. Fact. Rachel's identity (I argue imagery as her Phoenix look was DRAMATICALLY different from Jean's until Excalibur 65) as Phoenix and her imagery and identity came from Jean as Rachel is her legacy. Rachel, not Jeen, is the real legacy to Jean. So with any and all comic legacy characters names, costumes, and other items are borrowed from the originator as a nod to them. However our character preferences show here greatly as there was nothing "dreaded" about the mid 80's to early 90's. You may not like that Rachel was Phoenix and Jean wasn't, but that was how it was. And to be honest Jean wasn't upset by it as she really wanted nothing to do with the Phoenix until right before Rachel brought her to the future. So while I get you didn't like it, it wasn't really dreaded lol.I don't say this to direct any ire toward the Rachel character, but Jean was Phoenix first. Rachel's imagery/identity as both Phoenix and Marvel Girl came from Jean. I like Rachel with some phoenix imagery but I wouldn't like it if Jean had none and Rachel had it because we went through that during the dreaded mid-80's to majority of the 90's. It also kills me that so many fans act like Jean without the phoenix is new when it so isn't.
I don't know, I feel like neither Rachel or Jean should be anywhere near that bird right now. It has become SO convoluted and it being co-opted for the larger MCU (Thor, Avengers, Iron First, Iron Man, Thanos) stories has really made it unpalatable for me. I think that given the ending of Phoenix Resurrection, that Jean to be host again initially would be a major eye roll as she JUST TOLD IT TO %$#@ OFF. Plus given what Hickman is doing I don't see Jean having it anytime soon. If he wants Rachel to have it because it makes an amazing story and character development, ok? But really Rachel needs some stable story telling after the shitshow the past two years has been. And Hope being a white crown and not Rachel is strictly editorially mandated contrivance as Rachel did SO MUCH MORE than Hope ever did as Phoenix. She bypassed Hope in that regard, but not Jean and I an totes fine with that. And yes, she (Hope) should never have been Phoenix. But that's a whole other discussion.It is funny that I've been lightly arguing on X-twitter with fans who feel that Rachel should be Phoenix and Jean should never be phoenix again. I do love Jean either way (same with Rachel) but I have a hard time buying that Rachel is some superior Phoenix host. Rachel hasn't reached the levels that Jean or Hope reached (which I think sucks because I did not like Hope as phoenix at all).
I don't think it's a "hater' thing to say the whole Phoenix thing is a hot mess. It's true. No one should be saddled with that cosmic infection right now. And how you feel about what Morrison did for Jean and the Phoenix, some of us feel that way about what Claremont and Davis did for Rachel and Phoenix. It doesn't mean either is right or wrong, but it's how people feel. I would be ok with the whole Jean is Phoenix codename and Rachel goes by Starchilde with phoenix eye. But I don't think it's good for either character right now.Sometimes I do sort of agree with the haters, in that the phoenix is so messed up that it is better to let it go. But the Morrison era made me believe the Phoenix can be done and can be done well with Jean. Rachel was a beautiful Phoenix and if anyone had to have it I'd rather it be with Jean or Rachel than some random character. I wish Jean had the Phoenix codename and Rachel could have the glowing eye thing, but that is just me.