Scans_Daily

I don't think so the X-men didn't say anything about mutating existing humans. I mean I don't recall the PHoenix Five doing that at all. The fact it happened at the end of A V X seemed to be a consequence of what Wanda and Hope did to get rid of the PHoenix. The x-men seemed to be counting on the phoenix undoing whatever Wanda did that was making it difficult for new mutants to be born. The fact Hope was showing signs of the force ever since she was a child and her presence started new mutants being born after M-day gave quite a bit of credence to the idea that it would fix things.

There's also the fact that the Phoenix is the equivelent of an act of god it was going to come to Earth no matter what. The X-men are the most informed about the phoenix of any group on Earth, having a living former host among their number, and having the word of Hope's time travelling dad that the avengers taking her means bad news. I mean both sides hugged the idiot balls hard in A v x but the avenger held them the hardest.

The terrigen situation is completely different the phoenix coming to Earth was not by the x-men's design, They didn't intentionally summon it to save mutant kind. It was coming and acting on the information that they had and experience they made their decisions about it. Was it right for them to risk the whole world probably not but the avengers solution was even more risky and directly led to the whole PHoenix five thing. It was a solution we'd seen before didn't work.

On the other hand the cloud was intentionally released for the purpose of mutating individuals against their will by the inhuman king. It is also demonstrably harmful and destroying it has no negative consequences except inhumans can't mutate themselves with it any more that's it that's the only consequence.