Really he set it up with the jab and the lower spin side kick, after that, the guy was trying to block a low kick. But he got faked out and got caught with the high kick.
Watch his hands just before getting hit, he pat block/weaved the jab that didn't come and he tried to down block a low kick. Sometimes if you ain't sure its best to step back. Arm chair quarterbacking, hindsight is sure safe.
Good kick bc it worked.