Overrated by what standards would be a good question. If a Pistons fan were to go strictly by what gets said around here after any Spurs loss they might think that Duncan was already overrated and that he somehow stumbled his way into two MVP's while being the softest PF in the league.
Calling Duncan overrated, especially for how little respect he gets some times, is silly. With that said, the dude choked pretty hard in the fourth on his FT's. I don't really blame him for the missed put back since he hasn't had his usual lift for a while now.