Some vocal people do it, but the minority. Jack Kruse, whose system it is, makes the reasonable point that a big breakfast will reduce your appetite later on, and snacking is a bad idea. Aside from that it's a paleo/primal diet with some other details that may or may not be woo woo. Mark's never made excited noises about it, and nor have the other paleo writers. Though I'm sure its fans disagree, I don't think anyone starting out need concern themselves with it, and the vast majority will see results by following the primal blueprint as laid out by Mark (even the bits that may not be so appealing like eating a lot of vegetables not just coconut products and bacon, and exercising). Hope that helps!
The trouble with the rat race is that even if you win, you're still a rat.
I take life easier than almost anyone I know, but when I exercise I do it as though my life depends on it (which it does).
(Arthur De Vany)