The X-Men and mutants as a whole aren't buying love, they are buying sovereignty which are two very different things. We knew from pretty much the first line that Xavier isn't interested in complete integration right now as he is acceptance. The whole point of HoX was to show Xavier his dream won't work and it's time to try something new and bold. That informs not only character decision but the readers lens on the actions being taken in the book. The mutants no longer are turning the other cheek, they are standing up for themselves and I'm all about that life. In my personal life I am very much about second chances but after that bridges are burned. The X-Men have given humanity way more chances than they deserve to accept them as simply people so now it's time to make them accept them.
I don't need it because I simply don't. I don't think this is anything technical that absolutely has to be done. Hickman chose the beginning of his story, which we are still very very much in, and that is his decision to make. Editorial okay'd it, the fans loved it, I love it. It is as simple as that. I don't expect every one to agree with me, and yes I can admit that if they did a one shot that answered these questions I would certainly buy them, but the story as presented so far has been massively entertaining for me.Also, may I ask why you feel this? Because, see, this is something I really struggle with and I'm sure other readers do too: because of such missing information I find it very hard to truly trust these characters, especially Prof, Magneto and Moira.
Let me say this, the scene Hickman wrote in HoX #4 with Kurt and Logan making the big sacrifice is one of the most emotional and perfectly crafted scenes I've read in any form of literature. Kurt and Logan's conversation was so perfect that I can't even find the words to describe it. Those few pages sealed the deal for me, I'm all in on the Hickman era. Will there be bumps and bruises along the way I would almost guarantee that there will be but he has earned my trust. I say this knowing when I read that scene that Logan and Kurt weren't really dead, even knowing that it still hit home for me. To me the X-Men have earned this, they are owed this level of arrogance and domination.