When you're playing on one good foot, and you have a number of other nagging injures (hip pointer), you tend to be a step slower.
We saw KG a step slow and either giving up points or fouling more than usual back in 2010 when he was recovering from his knee surgery. KG is out there playing at like 50-60% right now.
I'm not saying that some of the calls weren't bogus, but KG can't expect to get a lot of benefit of the doubt right now, hobbled as he is.