A good referee knows his players, he studies them before the match. Lannoy thought he knew Van Persie. Referees don't like Van Persie, Lannoy doesn't like him and he first warned him and then a foul later, showed him a card. Not for something another player would have been booked, only Van Persie.
a foul is either a yellow card or it isn't. You shouldn't add non-bookable fouls and then book. Because what is the rule then?
Lannoy showed two fingers. So two not so bad fouls is a yellow card? And how does that work, does Lannoy have a scale in his head? Or in his notebook? Are there half bookable fouls, quarter bookable fouls, sixteenth part bookable fouls (sixteen of them gets you a yellow)? [Correction here - under Law 12 'persistent infringement' is a bookable offence, so yes, two fouls in quick succession which are not individually worth a yellow do combine to make a booking. Similarly 3 fouls over a slightly longer period would add up to give a yellow. Furthermore, it could be infringements of any laws, so dissent + foul + handball could combine into a yellow even if none of them alone is worth a caution.]
Lannoy missed a couple of really bad fouls. The Dutch stepping on Danish ankles. And a Danish hands ball in the box.
Denmark were the better team at first or at least the smarter team. And more dangerous. But in the second half their good tactics went down the drain.
(The above was written a minute after the match and yes, I looked it up and you are right Herr Fandel: a referee can add up smaller fouls and show a yellow. Still one wonders how he keeps track of all this, what if there are more players who have made fouls that are being added up? What if the ref forgets one of them? What if there is an hour between the first almost bad foul and the next? And isn't a yellow card really a warning? Why warn before giving a warning?)