Wow. When watching the fight live(ah, good times) I definetely thought that kick was illegal, but it was very borderline. IMO, I agree with Davisty, in the position Akiyama was in, it really wouldn't have made a difference. But rules are rules.
This is doing nothing to help Akiyama's reputation.
It will be interesting to see what happens, and a rematch is for certain. This time, personally, I'd like to see Akiyama roll Misaki's ass.
Support Mixed Martial Arts, not Ultimate Fighting