I think a lot of this is refs calling a game based upon the team. Big, physical teams like MIL, you need to hit the ground in order to get a call because there is so much physical play that there would be a foul on just about every possession otherwise. Smaller teams, like GS, they're going to call more touch fouls against. The problem with the Cs is that they're in between so it sometimes appear that they get shafted. I don't think that this is anything new, but, what I think is new, is that the game has become so athletic that bigs are taking it up the court and driving to the hoop (instead of stationary on the block).