I saw it when it happened and thought it was a foul, I reviewed it in slow motion and he does give two weak signals and then blocks. By rule a foul, in a championship game? What you don't know is was the crew told to made them all big fouls. I can tell you for a fact that crews are told to not call marginal fouls in bigtime games.
If you don't walk in their shoes be gentle to make hard judgement. I thought the crew did an outstanding job and the media is NOT talking about the officials for the next 9 months. Well done guys.