Even if the leak were about Mewtwo, Lucas, Shrek, whatever, you would still get people complaining about their favorite character not being playable. Sakurai made the Miis playable for this exact reason. You can't please everyone. Make your own game if you can do better! Sakurai doesn't owe us ANYTHING. We could just get nothing. So, thank you Sakurai for even taking the time to make us a game.