Its a horrible way to bet that is fed to the public without any mechanism to back it.
It assumes that past events influence future events, like a guy reasoning that he has flipped too many heads in a row, so that the next flip has a greater chance of being tales, or vice versa ( I'm on a hot streak, it's got to be heads again)
Its about the same as Avante's reasoning that evolution is bogus. It's hopelessly misinformed.
If he thinks winning one season is a validation that he really is good at this, give it some time, he will eventually regress to .500, and with that 10% off the top, that's a loser. Vegas welcomes him.