well, there was a point where he was just knocking people dead, other fighters come in from out of the blue like that and get given a lot more. If not money, certainly exposure. So I'd say he has a right to complain, if he is not deemed worthy to fight in the UFC then cut him, but if he is in there surely he must have enough to be able to make a living and focus entirely on fighting.. especially if he's a "KOTC headliner" level guy that would still be quite green and need all the time he can to train.
We're also assuming money, this very well might not have been for the $ amount...but I guess we go with what we can in these circumstances.