Pretty impressive skills for sure. Makes you wonder how good the archers really were back then. I shoot a recurve sometimes but never tried anytjj go outside the orthodox manner of shooting. Bet it takes some time to get anywhere near that good though.
Some of the guys at the Fort. Dodge, Iowa Horsebow shoots were very good and on a horse at the same time.
The Mongolian horse armies were unstoppable in open country.