well firstly, that video went for less than 2mins. secondly, he's a house DJ, they dont do a great deal when DJing, house isnt about intensity, it's about a natural sound. So nothing too intense is going to happen. Thirdly, he's at a festival, so everyone can see him and everyone wants to see him, he has to entertain the crowd and interact with them. Fourth, that was his remix, so he's not going to edit it or mash it because he's happy the way it is. I can see where you're coming from, but its just so hard to make that call with a 2min video.