The guy flying that tube was good at keeping his weight centered. As soon as you shift your weight a little to the left or right you're gonna face plant the water from 30 feet up doing 30 mph. That's how people got hurt on those things. I'm good with catching my air jumping the wake on a tube. Hitting the water from just a few feet up in the air can still sting.
Looked dangerous when the ski was right below and slightly behind, If the kite had rolled over he may have collided w the crashing rider. How fast do you have to go? looked like 50+ to me. Thats gonna sting a little if ya crash.