Guy's got at least 2" of mechanical offset so shooting soda cans at 4yds you're gonna be aiming at the air and hoping you hit the can. Without a target which can be measured you have no idea of just how much the mechanical offset is affecting point of impact so you can't learn anything. This guy is basically just turning dollars into noise.

In moto there's a thing called "goon riding" - where a guy who has talent, knowledge and skills intentionally rides like some dufus. Usually for making some funny video or something. Maybe this is goon shooting, because the way it's being done has no value other than comic relief.