In terms of saving money, investing it, and becoming financially independent he certainly seems to be doing better than some athletes, and hell, not just athletes, but people in general, who end up blowing all of their career earnings. In this sense, he probably gets some Mustachian points.
But, to me at least, being Mustachian is also about living on less, consuming less, and trying to be a better steward of the planet. He certainly gets negative points here. Now if only there was some Mustachian score board somewhere...