Yes, I am aware of the centfifical forces on the rear and I agree that it can swing around, but that's part of driving a car on snow. You learn how to control, that and correct for it early on in your driving. I will take the increased braking, traction, and steering capabilty from the snows on the front, and I don't care what is said in the video. you need to have decent tires on the rear as well and not bald tires. I have been driving in winters for over 40 years and I know how to do it. Having said that it is dangerous to drive in RAIN with better tires on the front due to hydro-planing. That's why my snows come off as soon as the snow is gone. If I drive in rain during the winter, then common sense takes over and I slow down.
I guess for the average no-mind out there, do what the video says, and remember it when you hit a patch on snow and can't steer, or brake and hit something like a curb or another car!