If AMD's platform is really as good as they claim, why does everything run on the nVidia one? Also, I don't think this is an issue worth getting upset about, especially if you can just turn the feature off in-game. If the particular engine I'm using runs better on nVidia cards, then of course I'm going to prioritize their platform as a base for my hair simulations or whatever fancy extra stuff I want to have in there for people with high-end GPUs.