Wii vs. Gamecube options of inverting face buttons

Hi everyone.

I'm using Retrobat v6.3.1-stable with a 8BitDo SN30 Pro controller in Switch Pro Controller mode (for the motion input) and after remapping it through the main menu, it's configured and works flawlessly in every emulator I tried so far, except Dolphin, Wii specifically. In Dolphin the face buttons are always inverted.

In Gamecube it's not a problem because I can change it easily through the "Face Button Layout menu" with all the options there:


But when it comes to Wii, there's only one option in the "Invert Face Buttons menu":


So is this on purpose for some reason and my only option is to just configure everything manually, or is there something else I can do to make it work?

Thank you in advance.