I totally agree with your points. I should have mentioned earlier that I reached my conclusions about key travel and force from comparing the Apple Magic Keyboa

I totally agree with your points. I should have mentioned earlier that I reached my conclusions about key travel and force from comparing the Apple Magic Keyboard 2 with the Das Keyboard 4 Ultimate in similar angles in front of a Contour Rollermouse Pro 3. The cherry mx brown switches in the Das Keyboard cause more pain than the proprietary scissor switches in the Magic Keyboard 2. Fatigue sets in quicker. I tried moving myself and the Contour Rollermouse up relative to the Das Keyboard keeping good ergonomics, but it still seems to have the same effect for me. I am still shopping for a split keyboard, I definitely want to try it but I see it as a hail mary for reducing pain given that they typically use cherry switches.