It depends on how you define bust. I don't think he'll ever be an MVP candidate because there are certain limitations to his game - relative lack of athleticism, funky shot delivery that he might not be able to get off against an elite defender, and he's not great off the dribble or getting into the lane.
But his court sense and vision are outstanding and help make up for those deficiencies. Give him a little time to develop and surround him with some talent, and he'll make plays. There's All-Star upside to his game.
I wouldn't put too much stock in one game, especially when he was up against one of the best on-ball defenders in the league who was clearly trying to make a point.