Canceling happens more often to people with no power, for all sorts of unjustified reasons, and often based on unfounded accusation leveled by people with more power than they have. You just don't read about it, so don't perceive it that way until someone makes up a totally false story about you or someone you know, and tries to get people to stop working with you. The problem with cancelling people had nothing to do with whether or not it's justified; it has to do with setting a pattern where anyone can ruin someone else's life by making up anything, and encouraging people to believe it without checking for themselves.