I have a friend who realized academia wasn't for them after their Ph.D/postdoc. It would be asinine for them to go back for a Computer Science undergrad, but they're in their mid-thirties and essentially are making a career change from academia. They have all the internal skills for becoming a developer or QE, but need some social signaling that they have a chance of doing the job.
I think of that person as someone for whom the bootcamp is valuable. Spend a few months learning to code, then apply to the bootcamp as a finishing school/paid recruiter.
(As an aside, getting off the academia path for those in the humanities is rather difficult at this point. We have really smart people stuck in terrible jobs.)