I just looked him up on YouTube, and while KwonKicker may no longer consider himself a WTF taekwondo stylist, his background and the school he came from certainly are Olympic-style TKD. He’s a mixed martial artist who started his “mixing” with an Olympic TKD base. So if you want to incorporate KwonKicker style kicks into your own MMA or Kyokushin game, yes you should be looking at an Olympic TKD school ;-)
My club is weighted much more to teens and adults. I'd have to check my figures but I think it's at least 50/50.
I applaud the way you run your club and your ethos and I think it has a real effect on your student ratios.