You're seriously arguing that someone with general knowledge of programming is going to get hard-stuck not knowing specifics of a language you and thousands of others have blogposted about for years, while linking your own posts?

Let's be real here. What percentage of companies are in dire need of 'experienced [language] programmers' who know these specifics that haven't already been set by previous devs or have another developer present to make the decisions? That's a tiny, tiny percentage of the entire job market, with much of the demand coming from companies with incredibly shaky foundations.

Almost the entirety of this is a luxury problem put on the individual. The moment the job market says they can't demand it anymore, they won't.