If you look at it, I'm sure you'll find equally plenty of people rolling their eyes at film critics for "making that up".

But I broadly share the sentiment of your message, and I personally blame some sort of variation of Goodhart's law. School curricula take an unquestionably good thing ("the critical search of meaning is an important skill to have") and have to pigeonhole it into something standardized and quantifiable (otherwise, how can you stitch a grade number to it? The horror!). The result is this desolate widespread contempt for everything that is not a literal interpretation.