The issue is their dumbass physics engine. Land on a horizontal surface at barely noticeable speed? Bounce off like a goddamn rubber ball! Land on an ever so slightly angled surface at a reasonable speed? Slide off anyway like you're covered in three gallons of industrial lube! At that point that's not something you can actively avoid with absolute certainty without having to go out of your way landing at the speed of a goddamn falling feather just so you don't bounce off a surface or get instantly killed because you landed on a corner at the wrong angle.