I agree with this. Voice control fitted to cars is pretty terrible still. It interrupts playback, takes a long time to resolve an input and takes even longer to repeat it back to you before doing it. Siri makes this a little bit better, but she's not been given access to the AC APIs of my car.
Buttons are the way. Or those cool switches from fighter jets... I'd like to see those in a car.
Familiarity is my personal favourite part of driving. Knowing the road, how much input you need to apply to a turn, knowing where the buttons for things are, just being able to feel for a control and know its purpose. All while my eyes are on the road.