Have you seen either Julien or Anthony ski ever?
The point of being sponsored is to sell skis, and Anthony definitely does that for them. He did after all win that redbull big mountain contest last year as well as putting up segments in some of the biggest movies of the year. Anyway, I'm pretty sure Armada didn't fire Anthony, as he is still on their website, from what I understand, Either his contract is up, (which happens to everyone whose sponsored), or he just decided that he wants something new and that this will be his last year with Armada. (which also happens. a lot.) Plus most of the Joystick team is already on surface, (just go watch hot lunch) so it seems like he's already more on board with them. The guy kills it and so does Julien.