I have a little different take on why you don't see WC/VT/WT used in competitive fights. You don't see
knives used either... or
clubs. You do see two reasonably well matched athletes dueling it out with rules designed for a "fair fight". Under those circumstances, MMA techniques and training are your best choice. Period.
Now I'm a pretty average guy, and I'm going to be 56 in two months. I work hard to stay in condition... but there's no way I could ever stand up to the rigors of fighting in a ring or cage. Nor would I want to. On the other hand WC (NVTO) works well for me. I enjoy the training, both the practical side, and the fun, "theoretical" chi-sau stuff. And there's lots of stuff I can use, following the motto of using
"Old age and treachery to defeat speed and youth". That means
not going face-to-face and mano-a-mano against some superbly trained brute. If I ever had to defend myself against a highly skilled and conditioned young fighter, I would use every and any "treacherous" approach possibe, knowing that it isn't a "fair fight". In a fair fight I would lose. So the WC and Eskrima I train are designed for an
unfair fight, physically and psychologically.
Here's what I'm talkin' about
:
http://www.youtube.com/watch?v=DWTNBRs7Ccs
BTW, one reason why you won't find any actual videos of this approach is because it would be evidence against whoever does fight like that. Most people don't like the idea of spending a long term behind bars much better than being savagely beaten. Think about it.
So to your point: if you want to compete and you have the requisite physical gifts, great. Train boxing, MT, BJJ, get into great shape and spar a lot. If you are an older guy, and not a natural athlete, there are smarter ways to live your life and still learn how to "take care of yourself". For some of us, WC fits this bill. Cheers.