University courses for programming generally get around this issue by having a CS110 type course that functions as a weed out class where people can find out if they have the ability to do the basic problem solving and logical thinking to succeed in that path or not. I imagine it's hard to implement something like that as part of a bootcamp though. The bootcamp really should be pre-screening people using some basic testing or such, but often they are more commercially minded and willing to accept students that will obviously fail because it keeps a steady supply of cash coming in.
