How much of the short duration of these bootcamps is teaching to the test that is the modern software developer interview? I have a really hard time imagining t

How much of the short duration of these bootcamps is teaching to the test that is the modern software developer interview? I have a really hard time imagining that somebody coming out of a 8-12 week program, even with some prior experience, properly understands the depth and breadth of material that should be necessary to get through a technical interview. It seems like most of them are focused on hacking applications, and not necessarily the fundamentals of data structures, algorithms, software architecture and design, working in a team, etc. I think it's great that these bootcamps are options, but have long been suspicious that the statistics they like to share are only indicative of either who they decide to admit, or who they decide to let graduate. For instance, how many people who make it through these bootcamps have a strong technical background, perhaps even a computer science degree, and only need the short time to dive deeply into modern web application design and implementation?