I have more than enough trouble to tuch any buttons in an fancy ui which is changing after every software-update. you have to search them, then you have to touch them correctly, all while the car is shaking or whatever. And all that while you have better use for your eyes in keeping it straight out of the car and observing the traffic outside.

Physical buttons can be "feeled". In the dark, when you know where they are and your muscle-memory got used to their position any you can keep your eyes ot in the traffic.