I do not know if I would agree with view on that. If interface is controlled (like this one) with limited options, it is always easy to interact with a jog dial, rotary control, esp while driving. Ofcourse it would be expensive compared to cheaper touch screen.
Think of frustrating Climate control in Model 3, think of meaningless button for transmission selector switched on Acura.
Tactile feed back, positive control of settings, able to use muscle memory is always easy using physical controls ergonomically. Think of Gear selector on typical automatic, you know the gear by feel, you do not need to look at that stick, neither need to confirm what you selected is correct.
UX design/Ergonomics designers can probably throw more light than me though. I am giving my feed back based on experience with various cars over the years.
UXer here. Some points of interaction indeed can exploit proprioception and muscle memory, particularly those that require a grip, or can be accessed while gripping something. However, for most buttons in the center console area, these require extreme spacial awareness of your finger in space to press without looking. In other words, from an eyes off the road perspective, many of the functions on a touchscreen are no less distracting than, say, hitting the RECIRC button on a traditional dash.
That said, many people hate the numbing feeling of touching glass. There's something satisfying about a depress of a button. There's even an art of designing how that press feels, mushy vs clicky, etc.
What Apple proved quite well is that the sacrifice in tactile feedback was well worth the flexibility of rendering endless combinations of a user interface underneath that pane of glass.
In another thread, i suggested that Tesla could redesign the homelink buttons so that the buttons corresponding to your garage bays could be displayed from left to right (instead of the vertical list it is now), which maps to your actual garage bays. Further, if the buttons took up most of the screen, you could indeed select the right bay without even looking at the screen.
While such a design would be atypical for a typical tablet interface, it makes so much sense for how the screen is used in a car...