I think you can certainly enjoy it book or think it’s subjectively a good piece of art without being a skilled writer of course. But you wouldn’t be a very good EDITOR without understanding anything about writing. Which I think is a more accurate picture of what we’re describing doing here.

Enjoying something or forming an opinion on it as a piece of art is a different activity and skillset from knowing if it’s in a fit state to be published, and if it’s not then being able to recognize and fix the errors