Obviously, Enes should not get more than 20min /game.
The shots that fell short were indications of him running out of gas. Enes really commits himself to defending, rebounding, and positioning himself in PnR situations. He, probably, would've hit 2-3 of those open 9-10 footers, normally. Also, the game is still fast for him. Kurt Thomas, no way, should be able to block Kanter easily, on a lay-up or dunk attempt.
However, you gotta be impressed with how fast he has made strides in trying to adapt to the NBA game, considering that he had not played competitive basketball (neither in Europe, nor in NCAA) prior to this season, and considering that rookies and sophomores were the ones mostly and greatly affected by lack of training camp, offseason workuots w/ coaches. Another impressive thing of him for me is that we can argue, Kanter, a 19 year-old center, was a difference maker in 4-5 games.
Not that Burks or Favors do not deserve. Burks came up huge w/ his 2 threes in Suckramento game, an indication of his fearless attitude and self-confidence. He is already a good defender and does not back up from physical contact. However, I feel like he sometimes forces the issue too much, and w/ Watson already forcing the tempo, that tends to get the team out of control. So, overally, one can make a rational case for Favors deserving of more mins, as well as Burks.
In short, I'm going with Enes for 18-20 mins per game.