Well, what is written is what someone thinks is readable, or what receives sponsorship according to quotas, I don't know. 😃 I don't believe that such artists, who have strayed from the mainstream, will ever get the opportunity to be immortalized in books like biographies or autobiographies, simply because someone has decided that these are not readable personalities, or are not the ones to take an example from, at least.
I think I now understand what the status quo is all over the world, just by observing what is published in Bulgaria and what is advertised by the biggest publishers. But it is what it is 🤷‍♀️