From the article:
Eleven percent said they’d be tempted to have a nap, read a paper, or watch a film while using one of the highway-assist features available today, even though every automaker peddling the tech requires drivers to pay attention to the road at all times. “It’s really worrying that consumers are believing the hype.”
Worrying, but not at all surprising, as the research is clear that people will trust automation while it's still much too unreliable for vehicle control use. Google abandoned driver-assist and instead decided to go for full autonomy after watching video of their regular employees beta-testing their driver-assist system (which was far more capable than A/P was when the latter was introduced, and probably still is). People almost immediately disengaged from driving and did all the activities noted above plus others, even though they knew the systems were immature - the most extreme case involved one employee who fell asleep and stayed that way for 27 minutes while the car cruised at 60 mph.