There's a significant gap between the experience of a bunch of elite research-oriented universities, and the vast majority of universities where the professors

There's a significant gap between the experience of a bunch of elite research-oriented universities, and the vast majority of universities where the professors are not "professional researchers at the level of being a professor" but rather teaching staff that might try to get some minimal research done but don't get much support and aren't really expected to succeed. The professors we read about on HN are the exception rather than the norm. The median professor working in a mid-rank institution (not a top-100 institution, not even close to that) does have academic freedom, but most of their time is taken with non-research duties, they do not have an a research group under him/her as they do not have an active research grant which would fund that, and so the median professor does a very limited amount of research which comes out, if I recall the statistics correctly, to approx. 1 paper per year.