2. Because of that, and for any of a number of other reasons, we may generally be overestimating how effectively these kinds of schools are educating people.
3. It's an open secret that hiring in the technology industry isn't based on aptitude, but rather on credentials and hazing rituals. Something like 3 decades of cultural development have trained developers that the most important risk they face in hiring is accepting someone underqualified, rather than passing on someone who is in fact qualified.
Given all these problems, it's not surprising that a school with a model of charging a 4-5 figure tuition in exchange for attempting to increase the likelihood of graduates employment would fail.