Hmm, what frustration? That was a clear yellow card foul. The Cagliari coach only confirmed it when he subbed his player. It was clear that even the smallest foul from that guy was gonna be a 2nd yellow, because the referee forgave him the 2nd yellow. Poor Astori was punished for what that Murru guy was doing.
I'm not really sure about the Asamoah situation. As you can see from my earlier post, I'm certainly not calling it a 0-100 call. It's when Bonucci hit the post, then Matri's shot was miraculously saved and Asamoah from the rebound headed the ball outside the post. Asamoah and the Juve players immediately surrounded the referee asking for a penalty. The replays didn't show well if Asamoah was pushed from behind or not, but his reaction and the way he fell implies that he was pushed from behind and that's why he miraculously missed the whole goal. But, like I said, I can't claim anything happened there because the replays didn't show it well.