Wilson is 100% right on this one.
The stability control is never completely off, even in offroad mode and the long button press.
The stability sytem is still on the brakes at very (very) large yaw angles.
Like in donuts.
If you didn't even put it in offroad mode, just disabled t/c, the stability system is still monkeying around with the brakes quite actively.
See this alot here in the icy north.
Also of interest, the t/c is never completely off, even in offroad mode with the long button press. Prolonged excessive wheel spin, lots of differential between the front and rear tires, will result in the t/c kicking in regardless of mode.
I'd like to kick the engineer of this setup square in the balls.