If open differential it is two wheel drive both getting the same amount of torque. Just because one wheel doesn't have enough traction for the amount of torque the other still gets the same amount. Limited slip or locking axles allows one axle to accept more torque then the other. No matter, both are in fact two wheel drive.
No matter how many demos or facts are presented there are always those who are so much more intelligent then the engineers when in fact they are ignorant. Years ago I would demonstrate using an actual differential and still folks would deny. Thanks for your public display.