Yah but thats always been the case and I in fact said that myself if you read the entire context of my post and not just the part you clipped out.
As far as "great writers" I might argue that. If the book is successful then they have very likely communicated something that the audience wants. It may be ideas, characters, concepts, not necessarily great writing or great plot or luscious words...but certainly something that touched the audience to make it a success. To me that is what great writing is about, connecting with the audience in a way that is meaningful.