I understand the concept behind the video, however safety rules are designed to prevent injuries or death. The whack job in the video violated at least a few established NRA safety rules. First and foremost, FINGER OFF THE TRIGGER. The guy was waving the gun around with his finger on the trigger. The ammo that he used to demonstrate (which by the way he called "bullets") appeared to be live rounds. He did not clarify if they were dummy rounds or live, so I will assume that they were live. He makes makes a comment in the end something to the effect "I don't believe I just did that". Which would indicate that they were live IMO. We don't know if his camera was on a tripod or if he was flagging the cameraman in his video.
Some of the comments he made were humorous, however with his safety violations, I won't be showing that video to my students any time soon.