He was in the last two games, not the whole series. In fact, until those last games, he was best player of the series.
And he did it. Hhe produced a lot more than LMA in the Memphis series, and the same than him in game 1.
So if you want to say he played a bad game 2, horrible game 2, it's OK, because that's the truth. But you can't say he's the Spurs that failed most in playoffs. He's FMPV and has elevated his game in more than "one" playoffs game.
He wasn't the first young "main guy" on a team who had ty playoffs games. Do I need to post LeBron numbers of 2011 Finals or Dirk stats in some games of the series against Warriors? The list or superstars is extensive...