From the Guardian Minute by Minute:
"Since a penalty is awarded for a foul committed in the penalty area, then surely to receive a penalty a player has to be fouled," begins Andrew Mullinder. "When did 'contact' constitute a foul in and of itself? Young was touched, and dived. But commentators and journalists justified it by saying there was 'contact'. There was, but so? Are there now separate 'penalty rules' that bear no relation to the normal rules of fouls? A cynic might say that it's something to do with playing at Old Trafford, but since I'm not a cynic I shall leave that unsaid."
I was trying to get the words myself, but this sums it up for me.