Players are going to leave, just like people leave jobs.
We only have five teams, he did not get an offer from one of the Super Rugby sides, OR he decided to go OS.
If he wasn't good enough, didn't take his chances, the coach did not like him, wasn't ready, or did not get a fair go is irrelevant now. Hansen is gone and in the Ireland squad.
Personally, I would never dream of wearing any other colours than the Australian jersey, but good luck to him, and I hope he has a great career.
I am much more concerned about the guys HERE representing our teams and fighting for that gold jersey than everybody else Meh!