MMA is a joke in the USA, especially in the UFC.
Most fighters rely on stand up, and their skills stand up skills suck.
Anderson Silva, Vitor Belfort, Lyoto Machida, BJ Penn , Quinton Jackson, Dan Henderson, and a few others have decent stand up skills considering it is the UFC.
But as a whole they all suck.
Yes, most anyone can just pick up MMA and train for a few months and compete and win. MMA is not brain surgery.
Especially in the UFC, where the rules are very slim...
You graze an opponent and he falls down, pounce on the grounded opponent, and ground and pound it is a victory.
Kimbo has very good stand up, and should do okay.
Look at Dos Santos, hahaha his stand up sucked against Crocop who was one dimensional