It's the same issue. If writers could meaningfully get an audience who buys their work independently, they wouldn't need a publisher.
Publishers offer support and printing, but ultimately an author needs a publisher to spread reach (i won't say "make money", because authors sure won't make much). Becsuse it's all about being loud and publishers have resources to be loud. Much better odds compared to a grassroots community paying a fair price when the author is ready to release.
The problem is that publishers, being the middleman, take over authors the same way the supermarket network takes over the food producers. Publishers own the shelf and a price label, and being less numerous and more organized, they can effectively own the audience's attention. They can help, they can also shut author down. They're not ultimately interested in maximizing availability, because they profit directly from the gap.
That's why they need restrictions and ways around them.
Publishers offer support and printing, but ultimately an author needs a publisher to spread reach (i won't say "make money", because authors sure won't make much). Becsuse it's all about being loud and publishers have resources to be loud. Much better odds compared to a grassroots community paying a fair price when the author is ready to release.