Remember Grandmaster J of the NFAC (Not Fucking Around Coalition), the guy who said he was going to take over Texas? He claimed that he and the other senior members of his group of insurgents had all received military training and were experts on the rifle range? He decided to put his latest range day up on Youtube.
A bench rested shot on a pistol target from 10 and then 25 yards with an AR-15, and THAT is the best he can do? He is certainly no expert. His gun handling skills would get him thrown out of my range. He has no muzzle control and is certainly not in any position to be teaching this to others.