Not true. I've always driven RWD and have competed in National Amateur racing events with the SCCA (and taught high performance driving techniques at my local club).
I setup my cars with a heafty amount of rear toe-in (1/4"). When the weight transfers left/right or one of the rear wheels hits a bump/hole it will push the car in one direction similar to torquing one side of a shopping cart with your hand.
A RWD setup allows the car to be more efficient with its tires (using one set for turning and one for power vs. one for both). FWD is just seen as safer because most people panic when a car oversteers. As the saying goes among driving enthusiasts: "Oversteer scares passengers, Understeer scares drivers"
So, on the subject of whether rear wheel drive electric cars will have trouble in snow, we've now heard from both a shopping cart driver and a performance racing instructor who configures cars to deliberately amplify rear axle steering effects under cornering. I can't help but think that the reality of driving a Tesla Model 3 in traffic in light snow might be somewhat different to both of those experiences.
On that topic: the selection of the driven wheels probably matters less than people think. The most important factor is the tires. Want winter traction? Buy winter tires.
In modern cars Active Stability Control (ASC) is effective in eliminating oversteer, no matter what the drivetrain setup is. Traction at stop lights would favor RWD when a car has near 50/50 weight distribution (I don't know what the Model 3 is but would guess it's close).
RWD makes the car simpler and with modern ASC is no less safe for the average driver than FWD. I'd guess that traction in a Model 3 would slightly favor RWD but tires matter more.
I setup my cars with a heafty amount of rear toe-in (1/4"). When the weight transfers left/right or one of the rear wheels hits a bump/hole it will push the car in one direction similar to torquing one side of a shopping cart with your hand.
A RWD setup allows the car to be more efficient with its tires (using one set for turning and one for power vs. one for both). FWD is just seen as safer because most people panic when a car oversteers. As the saying goes among driving enthusiasts: "Oversteer scares passengers, Understeer scares drivers"