I think what he meant was that with the stabilator roll function disabled at high AoA with LEFs extended, all that’s left for roll with the stick is +/- 5 degrees of aileron. Which, like he mentioned, gives you practically zero roll at high AoA. You need to manually use rudder at that point to get some roll
And I agree with OP, it seems that the aileron rudder interconnect is either not modeled or modeled incorrectly.
If you go into external view, you can see the rudder automatically move at high AoA, but you need to zoom way in because it’s extremely difficult to notice. It looks like they move 1-2 degrees max. And they move against the direction of the stick, not with the direction of the stick like you would think they would to help roll the aircraft
