Calls usually go the the aggressor.
The Spurs actually attack the rim... And they do so all the time.
Our "best" post big is lucky to get to the FT line twice a week. We are a jumpshooting team. No one other than maybe Harris or Hayward ever attacks the rim. Soooo...
I think instead of blaming the refs, we should blame the coach and players. The coach needs to demand his team take it to the rim more aggressively instead of casting off. Players need to nut up and take the ball to the rim aggressively.