because, and again not just my view but that of other people who actually didnt care who won, he completely failed to be consistent in his application of the laws. if he wants to allow a certain amount of physical contact, holding, pushing etc then i guess thats up to him, but to do it sometimes but not others is exactly the sort of thing that gets fans and particularly players so wound up. players have to know from a referee where his boundaries are because its not a constant. what constitutes a foul for one referee doesnt for another. the players just need to know, but when the official doesnt apply consistently it causes a problem
as you go down the leagues more and more physical contact is allowed.( if ronaldo had played yesterday he would have spent 86 minutes on his arse)
for the record i dont often criticise referees, and never for making one or two wrong big decisions. anyone can make mistakes and a ref just has to call what they see.