I kinda get your point, but:

1. Not a high enough fall to cause actual* damage usually.

2. Tiny bit less likely to happen on a Mac because while you can still knock the laptop over, you're WAY less likely to trip over the cable and pull it down. Magsafe is a godsend and I wish more manufacturers used it. I wish it was standardized.

* To the internals of the laptop, anyway. For the external bits: this is actually where the aluminium body is better than plastic. If it DOES deform, at the heights my laptops would usually be, it's such a tiny dent nobody will notice it most of the time. Cheap plastic laptops would develop a literal hole. Particularly nasty with laptops that don't easily come apart into a top and bottom case assembly. Something like a Thinkpad is excellent here though, because the bottom case comes off first when disassembling and it's more likely to take damage than the palmrest.

Once you get to really big falls, plastic laptops are better because the internals are better protected. I don't really throw my laptops out of 3rd story windows though. But if I worked at like a construction site, I'd absolutely prefer my laptop to be either something like a Toughbook, or a Thinkpad X240 or X250. I think Lenovo stopped making them as tough as those old models were, but I could be wrong. Those things you could easily drive over with a tractor lol