I'm not sure about this double thumbing, its kinda cool as a solo device i guess, but in the context of a band, its kinda pointless, just makes the drums sound to busy!
I'm not a fan of Bill Dickens! The start of that video isn't, IMHO, music. And his 'practice regime' kinda highlights that, "you can't hear any notes but you're strengthening your hands", i dunno just isn't for me.
Marcus Miller on the other hand, quality! Like was mentioned above, tasteful with a real sense of melody!
Si