Yes it is because because still saw a cover of Gee regardless if you realised or not. That shows how widespread its popularity was that it was covered by comedians in another country. Hell you could look back at a lot of ggs and find a cover of Gee by them.
It’s like how even you’re not into football there’s still a decent chance you may have heard of Messi or Ronaldo in some form as they’re 2 of the most famous people on earth both in and out of the sport, Ronaldo in particular is likely THE most famous person in the world.
I get what you are saying about Gee. Like I said, I wasn't into kpop 10 years ago. At that time, the only songs I know of that were KPop songs are Sorry Sorry, Nobody, and Gangnam Style.