Let me digress to make a comparison (in the process I may age myself but so be it) - I think back to the time when desktop publishing was first introduced. With desktop publishing draft copies gained a way of looking complete, finalized and picked up an air of authority based solely on the crisp appearance of the material.

I think of user stories in the same way.

I don’t like to review user stories and believe that they are always “right.” I don’t believe that the stories are always “complete.” And I don’t believe user stories can be the authoritative source for anything more than “what the author thought the application would do at the time they wrote the story.” I am a committed skeptic.