The idea that narrative intention invalidates all other interpretation of a work is absurd. Countless theses have been written on this; I shouldn't have to repeat them here.

Some even say The Author Is Dead. I don't go that far, but I certainly think the author doesn't get to insist that just because they didn't intend for a certain aspect of the narrative to be interpreted in such a way, everyone who does see it that way is wrong wrong wrong.