Shazzam!! It became dimensionally unstable.

I just watched it another6 or7 times. I can see a hose being slung out pretty straight, slinging coolant. Staying on the rear wheel, the tire isn't slinging grass like it's driving the bike, I don't think. It looks like the hammering from hitting the ground OhVur and OhVur again is just more than the frame can handle. One impact looks to yank the rear tire almost off the rim. IDK if we're seeing any fuel, but the coolant is going everywhere.
I wish we could hear what he was saying when he turned and saw what was left of the bike and his hands went up..

I saw a guy leaned hard in a turn and just slow down and grind to a halt a coupla days ago. Didn't even slide off the track. Weirdest "crash" I ever saw. Someone replied and said it was possible the bike shut off due to excessive lean angle. IDK,, maybe,, but having a "Tilt" sensor that would shut it down might Be a decent idea.
Might not want it to do anything just because of lean angle without using Time at that angle, to kill an engine, running on its side,

Imagine you fall, get up again, turn around and your whole motorcycle is lying there completely disassembled and sorted by material.

You can clearly see that he is thinking about the other jets he wanted to try out.