I watched the video, and agree with Clean. It is hard tracking something smaller than you are, and towards the end a couple of guys started to get the right idea about how to cut down the angles a bit and give more time on their approach, but I really didn't see anyone do anything close on the heli.

I also didn't see a lot of wing-on-wing hits either. I don't know if they all were going for the heli, or if they don't often get hits or what, but it did look like that group is just getting started and hasn't developed the depth perception and tricks used to get cuts in a hurry.