Word. Martial Arts have evolved so freaking fast its ridiculous. Effective hand to hand combat is extremely knowledge based. Especially something like jiu-jitsu. You don't need to physically train your body for years in order to pull off an armbar from mount against an untrained dude or anything. It's all knowledge and repetition. You can do jiu jitsu for 2 months, then throw a party and choke out all your friends. But you can't train like... 100m sprinting for 2 months and beat your buddy fresh off the plane from Jamaica.
Holy shit that kid is AWESOME! That guy who posted about switching leads and balance problems could learn something from that kid! Pops right back into a balanced stance after each hard right straight like a pro! Wow!
As for Lyoto Machida... man, it bothers me when people say that he's an unorthodox striker, and he does all this stuff nobody else does because if you ask ANYone who's trained in some kind of GOOD karate style with full contact sparring (as did and does Machida), they've all been doing the same techniques for years! He's just pretty much the only dude that's taken them into MMA and made them work. In K-1 back in the 90s, Andy Hug was axe kickin' motherfuckers into next week! K-1 isn't MMA but it's pretty damn realistic stand up fighting.
For whatever reasons (yes mainly because they work, but others too), muay thai and boxing became the dominant and almost sole striking styles in MMA. But in the background, there were always the kyokushin guys, the daido juku guys (http://www.youtube.com/watch?v=M5AvCcLwaJQ&feature=related), san shou guys, and like you said, even the JKD guys all with some good stuff goin on. But for whatever reason, we just never saw them able to translate that stuff into MMA.
But that shit works once you figure out how to alter your game a bit.
I think this is probably, and I may take a lot of heat here, but I think this going to be the next big step for striking in MMA. I can definately see a lot of techniques coming out of traditional martial arts and finding their way into the ring. We've already seen that with guys starting to use spinning roundhouse kicks effectively.
In the late 90s you'd be laughed at if you said spinning round house kicks were a viable MMA technique...
Genki Sudo may have been a total wackball with his awesome fighting stances and antics, but in the end he was still doing the same spinning back fists and sidekicks your average Joe Dirt Karate Instructor does in the dojo. Genki just found a way to make them work! Well... sometimes!
And I don't want to sound too much like a nutball here, but who had Tai Chi???
(2nd one is better)
It may not be there YET, and you can question the skill level of his partners, but anyone who doesn't see some serious possibility there is on crack.