Ok, then I understand "narrative" here to mean "all possible narratives". There is, of course, a limit on "all possible" as soon as you have any kinds of rules. In Basic Redbox, I can't have a story where a wizard uses a sword, by RAW. In any version of D&D, I can't reproduce Harvey with much fidelity. Until 4E, I can't reproduce the feel of certain Fafhrd and Gray Mouser stories, by RAW.
You can't do those things, by RAW, because no one considered them important enough to trump other considerations. I've never cared that much about secret charming, but I did care about a wizard using a sword in 1981. (It doesn't have to make sense--it's a preference.)
But you realize that if you go back to 4E and change that rules on powers, that whatever you change it to will also have narrative limits under your definition. It can't help but. Enforcing gravity limits the narrative.