Going to have to disagree with you, sir. You clearly haven't watched any weightlifting youtube videos at all and seen the plethora of comments about the viewers doubting the weight on the bar and trying to disprove the poster's claims through lack of evidence. This short (20s) portion of the clip was just to cast aside any doubt that the viewer may have of the weight being less than actually stated.
By including a failed attempt, he shows you that a 205 lb one handed overhead squat clearly isn't an easy thing to do (like what all of the Chinese lifting videos make weightlifting out to be). It takes grace and poise to show your failed attempts to the world. Just look at Koing's videos. Furthermore, there's nothing wrong with showing emotion or "weird concentration rituals". That's how people get pumped up. All he did was kick the bar. He didn't flick off the camera, he didn't swear and he didn't make any obscene gestures that you seem to have been so taken aback by.
Your response really had no grounds and I'm led to believe that you just felt like going off on a rant for no reason. Take that bull shit elsewhere.