And not to be cynical, but there is no way, under any circumstances that the director of one Star Wars movie (Kirshner) would ever tell the creator of Star Wars that he screwed up the movie. At least not publically, regardless of how he may actually feel. That's just the way the real world works, it would be bad form and unprofessional, even if they weren't close friends.
Besides it doesn't matter. Even if Kishner loved the changes, the SE can still be and should be critized because most of the changes are terrible. When you make a mistake, people can call you on it. It's up to the individual artist to decide whether to listen to honest opinions or not. And George just doesn't seem to care right now, which is too bad.