There is a good reason given for why flight controls are "inverted" buried somewhere in those "The Secret of Flight" videos by Alexander Lippisch:

https://archive.org/details/the-secret-of-flight/Secret+Of+F...

Keeping the stick in a vertical position will automatically correct flight path changes of the airplane caused by external forces. Basically a very primitive form of autopilot.

PS: it's in video 5 (Stability and Control) around timestamp 16:00