Article mentions backup cam is required now. Still, can't think of a reason I'd back into a space in a parking lot. Don't think I ever have. If I needed to for some reason, I'd lower the tailgate.
Safety. Several organizations that have automotive fleets recommend it for that. Pulling in backwards is safer because everybody can see everybody while that is occurring. Pulling out forwards is safer because you have much wider field of view and you have to do less maneuvering.
Liability. If you are pulling out forward and someone doing 50 in the parking lot hits you, you have a much better chance of them being at fault. If you get hit backing up, it is almost always considered your fault irrespective of how stupid the other driver is being.
I back into spaces almost exclusively. reason: I see that I can do it when I arrive, and realize that exiting forward will be a breeze regardless of the future conditions (you are backing into an empty space, and forwarding into a space with other moving cars that are out of your control).
it's one forward lap and one backward lap, same difference, in addition to which I find steerability/maneuverability is much better with the "steering" wheels in the back, because after you get the forward aligned to enter the slot, you can simply steer away after that.
>90% of the people who back in take much longer to back-in than they'd take to back-out because it takes them more time to back up with any accuracy.
Head-in to the spot is just as fast as head-out into the lane because most people don't have any trouble going forward.
The result is that back-in is a net time loss.
Reducing the chance of a car accident by like 5% would be incredibly beneficial to everyone.