You're also forgetting that they've got an application process.
It's not like they're taking random people off the street and claiming that they'll be competent programmers at the end of 10 weeks.
They are almost assuredly selecting people with the aptitude, interest, and determination to become a programmer, because, well, in the end, these programs are setup to turn out programmers who companies can hire. For example, I would be rather surprised if most the folks entering the program had never dabbled in programming.
It's not like they're taking random people off the street and claiming that they'll be competent programmers at the end of 10 weeks.
They are almost assuredly selecting people with the aptitude, interest, and determination to become a programmer, because, well, in the end, these programs are setup to turn out programmers who companies can hire. For example, I would be rather surprised if most the folks entering the program had never dabbled in programming.