Considering the average human reaction time is somewhere between 0.5 and 0.75 seconds (and that’s just REACTION time), that is an incredible feat.
“What we don’t see is the number of failures to achieve this one success?”
Exactly. This is a YouTube video. All it shows is that he did it one time.
It does not show that he can do it on demand.
If you do things enough, some of them will be spectacular.
I have made a few amazing shots in my lifetime. Shoot enough, and some of the shots will be amazing.