Its not a weird effect, imagine if every judgement call in sports erred on the side of blowing the whistle. You just end up with a billion whistles, and the fouls or penalties would almost always end up deciding the game more than the athletes themselves. That's not to say that refs don't make mistakes, they do. But on some level refs have to swallow the whistle in every sport if a play isn't absolutely gratuitous when the consequences of blowing the whistle will absolutely decide the game.
I thought the game was not decided by the officials, it was decided by the players. Namely, the Spurs choked that game away, they missed 2 free throws in the last 40 seconds, none of rest would have mattered if they had hit those 2 shots. Its easy to be mad at the officials because they will always be the most efficient scapegoat, but at the end of the day if both fan bases are pissed at the refs that generally means they did a good job. The heat fans seemed to be pissed with 40 seconds left, and the spurs fans got mad at the end of OT. The eurotravel + ball hack no call was the right call. Additionally the bosh block on green was also a good no call, he had the ball, yes his body still traveled towards green, and his strength contributed to him falling down, but he didn't take out his legs, hack his hand etc. If the benchmark for a whistle in the NBA is falling down, there should be a whistle on almost every position.