Using olympic level athletes to validate a fighting style is stupid. An olympic decathlete could beat the shit out of 99% of the untrained public.
She is beating a guy which is many times bigger than him witha single kick.
And what's more stupid than that is using anecdotal evidence, like 1 video. A BJJ woman (actually lets compare apples to apples - a BJJ BB world champ) could have easily thrown or kicked the dude in the balls too. TKD doesn't have a monopoly on ball kicks.
He wasnt kicked in the balls and it takes training to accurately hit a guy like that.
And easily thrown? really?
The average BJJ guy is going to do better than an average TKD guy against an untrained, but still dangerous attacker. Average. Not fucking TKD olympians, average.
Average sport TKD practitioner as in they compete? ill go for the TKD practitioner after year 2 to leave unscathed against an untrained individual.
BJJ train to beat BJJ, it doesnt deals with spazzy flailing individuals, and while its pretty unlikely that a spazzy individual will beat a trained guy, it still carries a high risk of injury that striking arts dont have.
I had one guy bit me, as i tried to stop him, i threw him but the fucking bite was nasty it took 2 weeks to go off and it drew blood.
One friend of mine from the judo team also, had one guy poke him in the eye, he simply reached to his face and dug his thumb, of course it didnt stopped my friend from beating him silly, but he had a subconjuctival hemorraghe.
Even i the BJJ beats TKD 19 out of 20, the TKD guy is better suited at dealing with an untrained stranger while leaving unscathed.
There is something about grappling that panics individuals and since they dont know you will stop after restraining them, they can go wild as fuck. So unless you are a cop, learn how to KTFO an individual as fast as possible if you want self-defense.