If this is the only data point then uber self driving cars are about 50 times more dangerous than average human drivers (see numbers quoted repeatedly elsewhere; uber has driven about 2 megamiles; human average is 100 megamiles between fatalities)

If that's your idea of adequate, you'd be safer just vowing to get drunk every time you drive from now on, since a modest BAC increases accident rates, but not by a factor of FIFTY!