I think you're missing my point. What you see in both videos was absolutely deliberate. I was not expecting anything, least of all FF to "save me", nor to drift the car.
What I'm trying to express is that even if understeer/oversteer is extreme, as in those cases I get zero feel from the wheel, nothing, zip, nada.
What I'm expecting (and thought ACC would provide) is if I got a bit of under/over steer I'd be able to feel it, so if I brake too late and can't get it turned in perfectly that feedback comes back through the wheel. Currenlty this isn't the case, that leaves me "driving by the numbers" to some extent.
I'm continuing to fiddle with wheel settings but maybe my expectation of "the best physics model ever in a sim" are too high ? What adds to the confusion is that GTS provides something vaguely in this direction, and I know its FFB isn't well regarded here, yet so far ACC feels like it provides less at the moment.