If they didn't do the test with people already quite familiar with the car's interface, I don't consider the results all that valid:
Most cars, most of the time, are driven by people who are very used to their particular interface. I couldn't find mention of this in the article, but it's necessary to state.
Furthermore, increased automation in many of these cars means you don't have to do many of the listed sequences as often, or at all:
"Lower the instrument lighting to the lowest level and turn off the center display." Why would I ever do such a thing when this is fully automated already?
Most cars, most of the time, are driven by people who are very used to their particular interface. I couldn't find mention of this in the article, but it's necessary to state.
Furthermore, increased automation in many of these cars means you don't have to do many of the listed sequences as often, or at all:
"Lower the instrument lighting to the lowest level and turn off the center display." Why would I ever do such a thing when this is fully automated already?