This is just silly. There are plenty of stories where you never can know what the intent was because the author died without saying anything about it, was anonymous, all records were lost or never existed in the first place, or they simply want(ed) to leave the work up to interpretation. And the idea that an “inaccurate” reading is necessarily “harmful” is nonsense. I can glean some things about the “intentions” of the Beowulf poet from historical context and the typical function of a Germanic epic poem, but based on that historical context and typical function I’m probably not supposed to relate to Grendel, yet I’m not harming anyone by doing so, come on now. Lots of marginalized people relate to Frankenstein’s creature, but there’s plenty of evidence that Shelley intended the story to have an anti-miscegenation message; are the people of color who relate to the monster harming themselves or do they bring something to the story that Shelley could not? Stories are bigger than the people who wrote them, that’s why we can talk about a single work of literature for centuries