As an operator, it’s my fault if people can do death saves (I’ve set the tilt too loose).
If I set the tilt tight to prevent death saves, then I’ve removed a significant part of the skill of pinball: nudging.
Of course, a ten cent rubber nub below the flippers can prevent death saves entirely...at which point the tilt sensitivity won’t matter.
It would probably make sense to use those in tournaments and then you can eliminate the no death save rule.
Also, “damage to the machine” is pretty weak. Six years of my games on location and I’ve never seen a nudging related injury to any of my pins. Honestly, a slide save or death save on a wood floor is probably less damaging to the game than people who rock the game back and forth to eek out ten extra pop bumper hits. Sometimes I just imagine the leg bolts boring ever widening holes...