I don't think the critique was of self-learning or bootcamps. It was a critique of a certain sort of cringe-worthy self-promotion.
And not just cringe-worthy. Spreading information based upon a cursory analysis of some CSV files without any training or experience in epidemiology, public health, public communications, etc. seems... irresponsible.
Also, off-topic, but most of my peers at university taught themselves how to program years before starting college -- typically in middle/early high school. And I mean actually taught themselves, from books and zine tutorials, not 'attended a formal course of instruction that was offered by a venture-backed firm instead of a formal course of instruction at a traditional university'. I guess times have changed, but the characterization of university students in CS as 'not self-taught programmers' is definitely the opposite of my experience. You came into the CS degree knowing how to program and learned how to do CS. And the characterization of "anything not university" as "self-taught" -- even formal courses of instruction that cost five figures -- is even more strange.