My 2018 Opel Insignia also has mechanical dials and buttons for climate control and answering phone, setting cruise control and other “critical” things. But if you want to do detailed configuration for radio, sound balance, music etc you have a rich touch screen available with big buttons to hit. I find navigating between radio stations and navigation so much more accessible with touchscreen that I wouldn’t want these things in another way. Anything that has to be accessed using a joystick like interface should be on the touchscreen and critical one dial features on mechanical where possible.