I was expecting a killer kick. The kick wasn't hard. The guy just got caught with it when he was least able to defend against it.
The Iranian had bad fundamentals going on. This is the kick before it landed. Blue is doing a reverse punch when he's not on the ground? So let break it down
Reverse punch = Close range punch. H's not in range not even close
Blue is doing a reverse punch too high in the air. = not going to be able to change direction, stop, or duck while feet are off the ground like this. For some reason blue likes to jump up in the air as a fake before.
Red has a good visual on the target, He already knows at this point where that kick is going to land.
Blue's Foot is off the ground for the reverse punch = Person is reaching beyond the range of the punch, which makes sense. The reverse punch is the short distance punch and not the long range one. It could also mean that there are some bad fundamentals. Good martial arts can develop bad habits just like beginner martial artists.
This is a well placed kick and would be damaging even if the kick wasn't hard. Blue gets kick in the neck when he is least able to defend against it (hit while punching). Sometimes people mistake quickness with power. I don't the kick would have resulted in a KO had the kick landed on the head.
If you were teaching a Karate class. Red would be the example of what to do and Blue would be an example of using the wrong tool for the situation along with some bad fundamentals.
The basics and fundamentals of any sport are key, but sometimes as people become better their fundamentals will start to decay and you start seeing this decay as blips that occur every now and then. No one is immune to it which is why we often hear pro athletes say they still work on the basics.
From a guy who would easily lose point sparring. I just think Blue screwed up and it got him in trouble.