My personal opinion is that some people have a natural inclination towards certain things, be it cooking, boxing, singing or card cheating. I also think that those with time on their hands and dedication can get to be very very good at things they enjoy. I am a musician but i work a full time job. I have no doubt that i would become a much better musician if i had more time on my hands, to dedicate towards learning and improving. However, i do think that even if you have lots of time and talent, if you don't have goals and organizational skills, you won't get too far. Scott must have been one of those fiercely dedicated, naturally talented individuals with time on his hands. And possibly good teachers. I think that is key too.
I do know that while i can execute a half decent heel peek, i could not use it with any sort of regularity or rhythm with respect to deals.
People often wonder why one would practice this sort of thing if one has no intention of actually "using it", but to me, that is like asking why one practices iaido - a martial art that will most likely NEVER have direct applications in "real life". I think that one gains something by being dedicated to an art and working on it daily, even if the benefits don't seem directly applicable. I hope this makes sense!