The Prime Minister, along with another MP and the president of the Liberal Party, took an all expenses paid vacation (other than the first commercial flight) by a registered lobbyist of the federal government.

The author can not seriously pretend that if it had been Prime Minister Harper accepting a lobbyist's gift, he would have been so generous.  The fact that the author likes the current PM's politics and dislike the former's, shouldn't be a determining factor in whether conduct is ethical or not.  It just instead suggest's he's a partisan shill that will say anything to justify his "team's" position.