Counterpoint: Duela Dent from New 52 where she was reinvented as a mass-murdering psychopath, or let's go with Moira becoming Bastion 2.0. Or hell, let's say that Magneto disappeared for a decade only to come back in human oven mode.
I will never get this attitude that destroying who characters were and forcing them to become entirely different people with little/no explanation or connection to who they previously were just because they are in a book. It's like stating that Beast suddenly being an amoral jackass who tortures his friends because hey, at least he's in X-force.