I'm pretty sure Boldin for the Ravens made a couple of crucial catches with a Niners player all over him before the ball was anywhere near. Basically the Niners couldn't do that and that was a major factor when it came to deciding who won the the game. I only saw one yellwo flag thrown for that type of foul throughout the entire game and it was happening quite often.
Yes one PI call, for the ravens on their winning drive on a third down, pretty hilarious
The ref at the end? I am guessing you are taking about the holding call? The offense player (can't remember who it was) was pushing just as much as the defence was pulling, I think it was the right call.
Yes, after being held for 7 yards he attempted to push off using the guys helmet, worst case scenario its replay of down, if flag thrown at initial foul its new set of downs half distance to the goal