roachboy has it right, as usual.
I've watched this guy on television a number of times before - I get sucked in by his approach (and his friendly, albeit flamboyant, style). What he's teaching you is not going to make you a virtuoso or a piano whiz. But that's not what he's trying to do. He's trying to teach you how to simply
play the piano.
When someone who's never played a piano looks at a piano, they see 88 keys. That's a pretty intimidating instrument to have in front of you. That, combined with music theory (which I still have a hard time wrapping my head around, and I've been trying since I was six years old) makes the piano look like this huge MONSTER that cannot be conquered. The first thing you learn in piano lessons is generally something like "Mary Had A Little Lamb." Well, when you're above the age of 8, nobody's going to be impressed to hear you play that one. So why would any adult, who doesn't have the time, money or - most importantly - passion to spend years of their lives delving into the instrument - ever want to start, if all you're going to get are theoretical ideas and "Mary Had A Little Lamb?"
Some of this guy's examples (that he plays) are a bit deceiving - not everybody is going to play the things that he's playing so quickly. But if his overall goal is to remove the "fear factor" from the instrument and get people to start playing music, listening to music differently, becoming music, perhaps when they never have before, then I'd say his work is noble.