I think much of what the Kuntawman is very good and interesting. I think a person should never be "finished" learning and continually grow.
I think "techniques" come out of principles of human physiology, psychology, and biomechanics--how the human body moves and reacts to stimuli.
So I think to experiment, a new "technique" must be tried, tested under
realistic conditions (with measures taken for relative safety of course) with different opponents, modified, retested, etc. If it doesn't work, it doesn't work.
I think experimentation in a safe "laboratory" of messing around with your training partners would tend to not work in the "real world" because the human body reacts differently when put under different stress. That's why I think martial arts athletes such as no-holds-barred athletes would actually do well in a "real fight" because their "sparring" and training is much more intense and realistic, even if they
can't eye gouge and bite, kick to the groin in their competition, they have developed the key attributes of intensity, timing, distance, etc. that one would need to pull of eye gouges, biting, groin manipulation

if ever faced with the situation.
In any case, there are some random and unorganized thoughts on the topic.
Cheers,
Bryan