But first things first...
3': What we have here is a very complicated situation for estimation of the type of the offense, the place of the offense and a difficult decision in the segment of the choice of a disciplinary measure (since we give the one-player advantage to one team throughout the entire game). In my opinion, everything is clear! There was an offense and there is no doubt about that (the contact is obvious, so there is an offence, the Laws of the Game do not know terms such as "intensity of the offence" and the like). The offense happened within the penalty area, and there is no doubt about that as well. Also, there is no doubt about that it was an obvious chance for a score. The main referee reached a supreme decision: a penalty kick. The question is if he invited the captain of the guest team, or did he follow him. By his mimicking, he probably got a suggestion form AAR1 and showed the red card. It is only then that he realized that he and the whole referee team identified the wrong player. He immediately made another good decision, which will probably cost him a less than good grade by observers: he excluded the guilty player. And who is then at loss? Nobody! This in not an error with respect to the correctness of the decision, since the final decision was CORRECT, but a technical error. Let's make a comparison with the situation at the Twente-Schalke match. One team could have paid dearly because, in my opinion, a highly skilled Scottish referee Thompson was a bit "stubborn". Only he who was a referee at least once knows how difficult it is to return to the game after such situations at the beginning of the match.
But Mazic "danced" on the field. His fitness performance and his running style reminded me of a dear Mexican Arturo Brizio Carter (WC USA 1994). All the other decisions by Mazic were precise, correct and timely. He showed once more that he is capable of recognizing the nature of the match and that he has the feeling for the game.
74', While awarding the penalty kick for AZ Alkmaar, we again have a complicated decision regarding the choice of a disciplinary measure. And again, in my opinion, Mazic was right: it was not an obvious scoring opportunity, but only a promising attack, therefore, a yellow card. Yet another difficult situation for estimation and another supreme decision.
If only some referees had done the same that Mazic in Udine did : shown stability and courage to notice and timely correct their own mistake, maybe the soccer history would have taken a different course. From my huge experience, I claim that after such "technical error" happens at the beginning of the match, the referee sinks mentally and then goes from one mistake to another. On the contrary! Mazic had appeared to be very composed and self-assured in the remaining of the game, and had SUCCESFULLY brought the match to the end.