we just had a guy visiting us to ask for help with analyzing german sentences. he's studying the language, and doing the classical analysis which none of us linguists understand at all. a doctor, master and bachelor couldn't understand how to use that outdated way to analyze anything, because it doesn't fit with how we have experienced that language really is.
reminded me a little of the difference between a classical binary understanding of gender and how many non-binaries and more open minded researchers have come to understand it as something quite different in many ways. the different views can be so incompatible at times, and it is really hard to explain some times when people have too different viewpoints.