When I’m driving, it’s actually unsafe for my car to be operated in that way

being able to consistently and reliably operate the thing without taking your eyes off the road

Considering they'd just spent the previous few questions discussing the visual-first aspect of touchscreens and accessibility issues for the visually impaired, I think that's exactly what they were talking about.

The generalizations are about completely different devices. They talk about CT machines & automatic defibrillators later.