I’m not sure why this one is so satisfying. Part of it is obviously because this guy was actually pursuing a fight with a woman. But I think you’re right that the style of her knockout was awesome. The arms swinging, the body language, the suddenness. Kinda like the Masvidal vs Askren knockout.
I actually saw one comment that it was a sucker Punch. No way. If you challenge somebody like that and then they walk all the way up to you, what else would you be expecting other than a punch? What foreshadowing was he expecting? Ridiculous.