I agree that there are a limited number of people that are excited about the types of thinking and problem solving that comprise typical coding. But not all of

I agree that there are a limited number of people that are excited about the types of thinking and problem solving that comprise typical coding. But not all of those people are already coders. 9 weeks of intensive training can get someone with the right mindset in shape to make useful contributions as part of a team. You can self teach (I did), but having structured guidance and someone to answer your questions can get you there faster. I watched my cousin move from novice to gainfully employed via boot camp in a tenth of the time that it took me drilling with a friend nights and weekends. Even if we take the author's dubious claim that the skills have a shelf life, it's going to be years at minimum before the demand slacks. Plenty of time to earn back the cost of admission with a significantly higher salary.