That rant was off topic and stems from a continual pet peeve of mine in the MMA community.
To put it bluntly, the majority of defenses I have used routinely and almost without fail against grapplers (such as taking advantage of the huge and blatant openings they leave when they shoot in and expose the back to elbows and hammer fists to the spine) are illegal in MMA. I don't fault the sport in this as having someone who has the striking power to break multiple patio bricks without using spacers (which forces the person to have the power to get through that thickness of resistance) having carte blanche to unleash that kind of strike would cripple or even kill competitors. But less lethal techniques like finger and wrist locks are banned as well which forces strikers to grapple in a manner more consistent with wrestling than, for example, aikido or a similar arts.
MMA is an entertaining sport and I'm glad men like Lyoto Machida and others of his ilk show that karate is a very valid art, but for someone who is trained in the more effective (and ironically more traditional methods of the art) we have to hold back. Speaking from personal experience, I was told I was forbidden from ever using my defenses against grapplers not only for safety but for reasons like "it's illegal per the rules" at an MMA gym I trained at in lieu of a karate dojo to expand my knowledge. The striking coach (a hardcore Muai Thai guy) even told me my karate strikes were "useless", even as I used said techniques to stun and knock out sparring partners in full-contact sparring.
I'm going on a tangent here, but as much as I like how MMA has shown that no one style is the greatest to an uninterested observer, the more I see gyms that focus on BJJ and Muay Thai which I grant are very good for becoming dangerous in a hurry (and I often send people who need that kind of skill quickly to good MMA gyms), but the sporting aspect is so focused on that street "dirty tactics" are never taught and most of the training is in winning belts/trophies rather than being able to handle aggressors on the street. While MMA can be and has been effective in that, I've personally seen far too many coaches advocate the double-leg takedown as a defense against a knife assault which is a very easy way to get killed (not to mention going to ground in the street is a bad idea if you have a choice in the matter as going to ground kills your mobility and opens you up to attacks from the aggressor's back). There are other issues I have with MMA as it's taught by most places but I won't delve further as I'm way the hell off topic.
I apologize for the rant, but I wanted to explain my words in an earlier post and give said words context.