Statistically speaking, Tesla's autopilot is more dangerous than regular driving. They spun bad statistics to claim otherwise. They ignored the difference between highway driving (which is safer) and all driving, and ignored demographics (most Tesla drivers are older and affluent).
It is too early to really draw many conclusions about autopilot, because there is actually very little data. Comparing the number of miles driven by Tesla to the number of miles driven by all other cars in one year is a difference of several orders of magnitude. But they are under investigation, and as more time passes the more damning it seems for Tesla.