But rather if you offer touch scrolling you’ll also want pinch to zoom.

“Spectacular failure to apply even the most basic common sense” is a pretty strong position. In my experience with actually using a fantastic touch interface for navigation, and having tried and hated using nav systems in expensive cars in the past, where I’ve had to resort to using my phone for nav, I am equally strongly of the position that proper multi-touch nav on a large screen (Tesla Model 3) is safer and easier than any kind of button based nav system.