> To say it could possibly be misunderstood is to say that there is a wrong way of understanding, but clearly there are at least multiple correct - or at least not incorrect - understandings!

There are multiple correct understandings but there are also understandings that are completely incorrect, no? You’re saying any interpretation is valid, even ones that are clearly nonsensical?

At some point we have to bound our terms, obviously if someone interprets The Great Gatsby to be making commentary on interplanetary space travel they are incorrect but if someone was to interpret The Great Gatsby as containing some meaningful commentary that can be related to interplanetary space travel, that is within reason.

If your definition of "interpretation" involves making claims about the author or empirical details, it is clear you can be incorrect. Otherwise, I think everything else is permissible.