Oh please. The UFC ruleset is exactly what encourages people like Okami to fight the way they do.
The fence, the lack of kick/knees to "downed" opponents, and the heavy weighting given to takedowns and positioning in the 10 point must system all favor wrestlers. And one could just as easily argue holding position while doing no damage isn't fighting either.
A yellow card system would at least force people to make use of their position instead of just stalling and coasting to a decision.
No one wants to watch a guy be held onto for 15 minutes, let alone pay for it.