Being that White Hot Room Jean/Phoenix has appeared to Wolverine, Nightcrawler, Cyclops, Storm, and Emma Frost, I'd really like her to appear to Jean. I'd be happy to see her explain while yes there's Dark Phoenix, Phoenix saved the universe from destruction. Phoenix stopped the celestials from destroying a planet, stopped Cassandra Nova from killing all mutants and destroying the Shi'ar, and Phoenix destroyed the demons at the end of Inferno (Manhattan was demonized until Jean took back the Phoenix fragment that was released when Maddie killed herself). Oh and of course Phoenix amputated Sublime's future, and Phoenix restored mutation at the end of AvX.
The first time Jean only went Dark Phoenix due to Mastermind (with help from Emma Frost) subverting her into becoming the Hellfire Club's Black Queen. That happened in part due to her lack of experience as a telepath (Xavier had kept her telepathic powers dormant for years as the early Marvel Girl). Jeen knows what happened via memory dump from Beast, and she's already had a lot of telepathic fights from early on and this includes when she beat Lady Mastermind (more powerful than her father).
But back to my ultimate point, Adult Jean's friends maybe biased towards the Phoenix because they associate it with Adult Jean's death ,but the Phoenix repeatedly save them and so many others. It is something Jean can control (Adult Jean did control it just fine during the Morrison run). I'd like to see her get perspective from her adult self, and someone with great cosmic/mystic insight like Dr. Strange.