Tesla claims it is. “Tesla Autopilot does not prevent all accidents – such a standard would be impossible – but it makes them much less likely to occur. It unequivocally makes the world safer for the vehicle occupants, pedestrians and cyclists.” — https://www.tesla.com/blog/update-last-week%E2%80%99s-accide...
That is a really good point. I hadn't though until now about how that language makes it all so ambiguous. The implication that autopilot is safer than you doing it yourself has to be misleading as it implies that you shouldn't have to monitor it so closely.
