Warren Spector is not backwards in coming forwards when it comes to Mickey Mouse. The man behind Epic Mickey has told SPOnG in a lengthier interview, “Mickey Mouse is a problem.
"I don't believe he has achieved his full potential, certainly not during the 1990s. He was less of a cartoon character in reality, but a mere figurehead for Disney. A face you put on T-shirts."
You can read the full interview
here. It even contains a piece of advice from Disney/Pixar's John Lasseter.