I'm not sure anybody really knows the answer. Lots of conflicting data on the interwebs , its been written that they went back to haldex because the ford in house version couldn't take Ecoboost power. Allegedly our system can go 100% to the rear too, but who knows.
I think crash works at Chicago plant, maybe he could get some answers.
short of that my plan is the get pics of casings and stampings the next time the car is in the air and see if I can figure ot out.
if it is Haldex, they are quite stout and will bleed power to protect themselves. And I think they're rated for like 2200+ lb ft of torque.