the thing is they don’t have to develop something for more realistic adverse yaw, they did that already,
they just decided to use unrealistic arcade numbers for their airplanes, including gliders.
The adverse yaw physics are working, you can see it in all the 3rd party gliders with an integrated optional adjustment setting where you can set 0-100% of realism.
Once you used that you wont go back to the Asobo airplanes, it will feel like flying in GTA.