It's all timing. I ran into Matt, the pilot here, a few weeks ago and chatted with him about the video.
He usually flys his UL Prophecy when I see him - he calls it the greatest sport kite ever made and he can do some amazing stuff with it.
I saw a video a few years ago of him flying it, but have not seen it in some time. Luckily, I can just watch him fly!
. It's an impressive kite - HUGE sail and flys much differently than anything made today.