Is it? I don't know, maybe I never read enough Bishop stories to get a real feel for the character, but I didn't find his portrayal horrible or anything. We get heretofore-unknown information about his future and how it came to be, but unlike the Scarlet Witch, it actually makes some sense. This isn't retconning the same story that was covered in the '80s but making Wanda suddenly go crazy in the present from it. This is something that Bishop could've just had in the back of his mind, knowing that the day would come when he'd have to choose a path--either stay "good" and remain an X-Man, or go "bad" and possibly spare the whole world the horrors of his native future. Those are far bigger stakes than a couple of imaginary kids Wanda came to terms with the loss of decades ago. The character change in Bishop seemed a lot more plausible to me.