AH-MEN to that bro.
He looks like Layne Norton Sr. in that video. All he needs to do it run around the gym yelling before he lifts and he'll be good to go.
I can never get why some people go through these psyching up rituals, to this extreme anyways. Here is a clip of Pyrros Dimas, arguably one of the greatest Olympic Lifters, pound for pound, of all time. He only screams when he finishes the lift, lol.:
There used to be a workout video of him on youtube, lifting some incredible poundages, and not a peep. Just strong, confident, and all business.