alt Hacker NewsSomething tells me it was always like that. My university professors were teaching things nobody wanted to learn, and people were practically begging to be taught more up-to-date hireable skills.
Every time there was project work, we would be recommended using Swing or similar because that is what professors knew, but everyone used React because nobody hires Swing developers.
Someone once said "Our SQL professor's SQL knowledge is 10 years out of date. Probably because he has been a professor for around 10 years at this point" and that kind of stuck with me.
Someone told me that once a good idea came about it took about 5 years to process it into a book and then it took another 5 years to be accepted by people teaching outside of consultancies.
Of course, by then, it was antiquated.