"There's no guarantee, but I see people work pretty hard at school, and if that same effort were put towards the Hustler's MBA, I thnk the chance of being self-sufficient and prepared for "real life" is about 90%. I'd estimate that non-laywer/doctor college is somewhere around 50-70%. So, like anything, this plan is not totally foolproof, but I think it's a lot better and cheaper than the alternative."
I don't know what kind of experiences you've had with random college graduates and their level of preparation for real life, but I think he's being generous at 50-70%.
I'd certainly be more interested in talking to someone who had the initiative to follow his plan (poker, reading, starting a business, good health, etc.) for 4 years, versus someone who just graduated with a bachelor's in a randomly selected discipline and had no real life experience.
Also, I don't know if you've ever actually played poker seriously for a long period of time, but the reality is that if you're relatively intelligent, have self control, and are disciplined enough to constantly learn new things, you are truly a shark swimming with goldfish. The average person at a poker table in most casinos has no idea what they're doing. There is a reason that professional poker players exist. It is not purely a game of chance, although there is chance involved. Kind of like startups :)