That might of been for the Ref , who had a poor game.
I thought the booing was aimed at the way the game finished with Pantilimon and his time wasting.It was all that spoilt a decent game of football for me. There should be an automatic 2 mins added by the ref if he has to warn a player for deliberate time wasting like that when the ball's out of play. Time-wasting within play is a skill but like that it's just cheating.
I agree with you Dave good article.