The thing is it's super easy for indie to get the other parts of the business today.

There's loads publisher that focus on some indie niche, and they will do the things that indie dev don't like / don't know how to do.

But indie dev don't like to hear their game sucks, because an indie dev put his heart and soul into production. So they stay well away from the well established publishing pathways

Blaming public taste is so much more comfortable.