LALZ are you serious here? Take a look at a Red bull commercial, and keep in mind the type of imagee they are trying to build.
Now this is old Tanner
This is New Tanner
Don't get me wrong, I do like Tanner, and enjoy watching him, but you have to think about a few things. The general public most likely does not take into account what Tanner has been through, and how hard the tricks that he is doing in his "newer" videos actually are. Compared to the crazy stuff (that we all think is stupid) that other people are doing, his newer stuff is uninteresting to people. People like watching crazy things, and Tanner plain and simply is not doing crazy things anymore. Again props to Tanner, and I am definitely not hating on him (as he is one of my favorite skiers, and always will be) but all i am trying to say here is Red bull made a reasonable choice, and by the looks of it Tanner will make it just fine without them.