Writers decide if they want to use a publisher and which publishers to use. With the internet, I don't think any good author needs to rely on a traditional publisher.
Anybody can self publish on Apple Books, and probably on Amazon as well. Who cares about Random House, or B&N endcap (whatever that is). A "good author" in this case is somebody who can independently make sure his book is readable, and doesn't have to rely on a publisher to fix spelling, get pages in order, and such.