I was unable to catch the match but the Djokovic and Murray matches do usually tend to denigrate into a game of who makes the mistake.
It's all the more frustrating because both players are capable of a lot more as we saw in both players' semis.
That being said, I don't blame Novak. It's winning him games. As Tignor says, it's probably time for Murray to try and change things up. If Murray does start playing more aggressive their matches should become far more watchable.