I can't speak to the quality of the people who are attending these bootcamp programs (I wouldn't at all be surprised that most of them aren't "successful" for a variety of reasons) but as far as traditional university education being "successful", there are tons of university graduates who have little to show for it except a piece of paper and a load of student debt. A lot of kids today go to university because they're told it's what they're supposed to do, and coming out of it with a degree doesn't require nearly as much as it used to.