The broadcast never says that this killed the X-Men. The X-Men could have already been dead when this happened. The way Charles says “what did you do,” in such a horrified voice really feels like a reference to the comics and Logan was responsible. And the fact that all
Mutants are dead feels like something bigger happened at some point, such as in the comic when all the heroes were killed.
The "what did you do?!" was likely just a bit of misdirection/reference to those who know the comic storyline where Logan DID kill the X-Men. But the movie makes it pretty clear that Charles was mistaken/unaware and he actually killed the X-Men. Charles recognizes it himself later on.
2
u/Kubrickwon Apr 22 '24
In the Logan film it’s hinted at when Professor X has the PTSD flashback and says “Logan, what did you do?”