Just going to add a positive anecdotal example since most of this thread is negative. I finished App Academy back in 2015 and 6 years later, most of my friends are a top tier software companies. In general our cohort did well, although there were definitely people who did not succeed. The experience was truly life changing for some of the folks.
I do agree that I've seen a LOT of bootcamps try to "scale" out their programs by removing human teachers and using video/written content or by increasing student to teacher ratios. I'm curious if the experience I had still holds today at any bootcamps or if the drive to "scale" has messed up the industry