That's what Tesla says but that's not how people are using it - and as people grow more comfortable with the autopilot, the less vigilant they'll become. I have this picture in my head where people are trying to recoup their commute time as though they're using public transport. I suspect we'll get there some day but today is not that day.

While the Tesla spokespeople are good at saying it's driver assist, their marketing people haven't heard - https://www.tesla.com/autopilot/. That page states "All Tesla vehicles produced in our factory, including Model 3, have the hardware needed for full self-driving capability at a safety level substantially greater than that of a human driver." but as I noted above, we don't know how much of that safety should be attributed to the human. Tesla apparently knows when the driver's hands are on the steering wheel and I presume they can also tell when the car brakes, so they may have the data to separate those statistics. At a minimum, their engineers should be looking at every case where the autopilot is engaged but the human intervenes. They should probably also slam on the brakes (okay ... more gently) if the driver is alerted to take over but doesn't.

As an aside, just the name "Autopilot" implies autonomy.