Agreed.The union support was individual members voting - not that it would be obvious from some of the press coverage. Trade Unions still remain the biggest voluntary organisations in the country and the support of levy paying members is probably what scares tax dodging foreign media owners hence the "Red Ed" bollocks.
Predictably, there was absolutely disgraceful coverage from the Standard following his election. They insisted he had to prove he wasn't a union yes man. Erm, why? I don't recall the Standard saying that Cameron had to prove he wasn't in the pockets of big business after he was elected Tory leader.
Actually what EM does have to prove is that he can be trusted with the keys to the country, because most of us don't give a f*** which block of votes got him elected as leader.