Damir Skomina showed a yellow card immediatly as if to warn the players. He was fair, correct and right most of the time. Maybe his early warning wasn't even necessary.
Dutch winger De Ridder ran all the way to the corner of the field to try to reach for the ball, he only just missed and kicked the corner flag post out of frustration and immediatly apologized. Skomina booked him, acoording to the rules, but he could have let it go. Referees should apply these rules only if they want to, not because they have to, Leniency is a quality of great refs.