Sure it validates criticism. The whole post was about the potential unbalance of burst damage. The argument seems invalid since his team won and were victorious. It doesn't make sense from my side of things watching that video why he would bring the topic up when the outcome didn't matter in the first place. If your team is good you will do good.

All I see is a healer saying he couldn't heal the damage of several strong burst attacks (be it luck or skill they hit at same time) on a brd and wanted to try to make a statement about it. Also are you saying i'm inexperienced therefore my criticism is invalid?