You are right, I was way to optimistic about how MSFS works
Even X-Plane only considers one dimensional functions for its aerofoils (CL, CD and CM versus AOA). You can have two functions (one for high Reynolds No, one for low) with linear interpolation in between but that is still quite crude, especially for high speed aircraft.
True, but you are forgetting that we in X-Plane CAN build a wing out
of up to 12 wing sections with 4 airfoils on each. Each section
can consist of 10 stations - 120 total - with different incidence on all
of them. We also have airfoils on Stabs, props and pylons.
It also models downwash on the tail in e.g a slip which is sort
of 3D.
XP is not perfect, but it's improving every day.
Cheers,
M