Vale Tudo is pretty much no rules and is how the UFC came about. I totally disagree with you though. Refs aren't instructed to stand fighters up, they're told to wait until there's not much happening on the ground, but because there are more and more BJJ black belts getting into MMA, fighters are training BJJ more than anything else. *Although i agree about the length of fights etc, but the original argument was that Bruce Lee would be able to beat the majority of MMA fighters today, and by definition that means a maximum of 5 5min rounds