The simple fact is this referee is utterly shit. He was lambasted by Le Tissier when he fucked up another match this season (I think involving Swansea). The guy is simply clueless, makes mistakes left right and centre and then panics, tries to even things up and ends up losing control of the game entirely.
I can't believe people seem to think that the referee is the only reason we didn't win. Hello, we were playing fucking Norwich at home, we don't NEED the referee to bail us out. In any case, everyone seems to be ignoring the fact that Gervinho was OFFSIDE in the build-up to the penalty incident, so it doesn't matter anyway.