Have you actually seen the effect in question? 80-90fps is not "Shitty". BF5 is not that great a game, but it does show what can be done, to great effect, with raytracing. Maybe you're not seeing the subtleties?
But that illustrates perfectly the point I was making, AF took time to perfect. That doesn't mean early implementations were perfect, but they were good enough to show the benefit on offer.
That is not logical as stated.
Except that 2080ti's are still selling out and the RTX series is one of the fastest selling lines of GPU's in history. And "Physx" functionality is literally built in to every GPU NVidia makes making it one of the most adopted feature sets in the world.