Maybe would-be startup bootstrappers should focus on getting into the Mustachian Position of Strength before starting their companies? http://www.mrmoneymustache.com/2013/11/11/get-rich-with-the-...
Anybody with that kind of starting position could retire early. Most folks don't have that kind of starting position.
Of course, there are plenty of folks who inherit a house, make $200k+, and still do not manage to have the discipline to do what he's done (reduce expenses, etc). But... yes, he's had lucky breaks and situations not everyone will have. To the extent he helps encourage people to reduce expenses and get a handle on their finances, it's useful, imo, but yeah, knowing how he got started can help keep a perspective on the advice.