I agree, post players are penalized for playing defense correctly, feet planted and arms straight up. Most refs make bad calls because they are out of position, or have bad angles. I saw a game last week where whistles were prolific. Bad calls both ways, and most of those calls were made by the official out of position, when the official in clear view was allowing the play to continue. I know the officials are trying their best, but some crews simply don't get it. I would be curious to see a supervisor's evaluation of the game I saw last week.