It's not so much the key travel as the overall 'feel' relative to how your muscles learned to type. Everyone's different and react differently to different keyboards. What's most likely the issue is the not-conscious feedback loop that tells your fingers when to stop pressing. With some keys you type lightly, other types of keyswitches lead you to mash the keys with a high force until you're bottoming out on the pcb. It's that impact that generates high forces.
Does that mean that if I type very hard and I feel there's no hope for me to learn not to bang on the keyboard, the most, well, healthy keyboard for me will be the one with the longest key travel?
