This reminds me of the old joke! Two guys were watching there boys at a game. One guy asked the other on who is son was so that he could criticise them! The other guy said why do you want to do that? Well you have been criticising my son all day. He said which one is that ? The refreree!
We were speaking about this yesterday,, before we went to the game we were watching the Spurs v Liverpool game, The first goal was given by technology. Other incidents we disagreed between us and the ref about some of the decisions.
Low and behold at the game we had the same disagreements, which was not helped by players rolling about if they had been shot, and the management teams trying to influence the refs decision!
Yes they make mistakes , they are human and without them there would be no game. I have only been ref at a friendly game as a favour and that was a nightmare. It would be good if some of the critics , if they think it is that bad get involved!