But I can see endless accounts of high level bjj people failing to apply a technique when they roll. In competition only one person can win, so someone had to fail.If you're a black belt in Karate or TKD, and you can't break a board or capable of doing competent-looking kata, then your instruction was seriously lacking.
The same would apply to a Judo, Bjj, or Sambo black belt who couldn't utilize proper throws, chokes, takedowns, or leg locks. However, I don't honestly see that ever occurring since those arts emphasize a high level of hard sparring. There's simply no way you're advancing through the ranks in Bjj for example if you can't do the basics.
the techniques are fine. It's the people doing the technique that's the problem, along with MA teachers simply not caring about the proficiency of their students.
Btw, here's part 2;
I don't think it's possible for any person to run at 100% 100% of the time. We are human after all.