I covered this in other threads, basically. In truth, I was largely responding to this angle at the outset. DRM feels like a red herring that almost certainly exists due to demands from publishing houses. (I'll have to check to see if you can get any non-DRM files from libraries. My expectation is going to be a big no on that from any library that lends out audio books.)

The odd complaint here is that the authors are upset at getting a smaller share of a smaller sell, that is in a much larger sea of sales. They acknowledge that they make more money from audio books sold at audible, even with this cut.

This also does a shit job of showing the break down to the performers that are reading the book. If those are paid externally to the 40% that goes to the author, I really don't know how to take the complaints seriously other than greed on the authors that are talking about it.