So there's maybe ten seconds left in the extra time, the home team has a staggering 72 % possession but just lost it's concentration and let the Czechs score 2-1, when Dutch defender Emanuelson wiped out a Czech in the box and every Dutch heart skipped a couple of beats. Basicly there are two things a referee can decide.
Give the visitors a penalty. Have all the Dutch players yell at you, the whole stadium yell at you, have newspaper writers and television panels discuss your move and even have the coach or at least the Ajax manager sacked (they're not doing well at the moment).
Wave it off. The 2 minutes were really extra, the Czechs simply didn't earn a draw. So go on with the match for another second than finish it. The euphoric mood of the evening (Ajax goes to the next round) will make everyone forget what happened.
One could argue that both decisions are cowardly, If the referee gives a penalty he's a coward because he should have been inspired by the mood of the game. If he doesnt give a penalty he's a coward because he's afraid of the consequences. My guess is that internationally renowned and highly acclaimed referee Ivanov waved it off because he can.
The other 91 minutes were a piece of cake for the Russian referee, nothing happened. Ivanov, who isn't a prolific booker in the first place, didn't have to show yellow it all. Probably, your reviwer isn't sure because he fell asleep for a while during the match.