I can only go by history and personal experience. This is a blog after all, not The New York Times. When you lightly press the back of an iPad Pro and you see that reflect in artefacts on the screen, you know Apple hasn't done any testing on this aspect. The problem here is that we're not talking huge drops, or not even drops, but rather situations where the back or the front of the device just knocks or presses against something which creates enough flex to damage the internal components. Just by pressing my fingers gently to against the back of the new laptops I can feel the back touching a bunch of internal components. That is much less the case with the previous design two of which I have next to me right now. It's not about almost touching, it's about actually touching. I can almost bet that in another year or so Louis Rossman will be screaming about this being a cause of people taking MacBooks to his shop to repair.