very good point, I would not be surprised if Uber put those cars out with a barely working model to collect enough training data, the human operator to correct such errors was tired and didn't intervene. Some basic driving test for self driving cars or other mitigating factors need to be added IMMEDIATELY otherwise tons more will probably die or be injured. Train operators need to prove they are awake and with attention using some button presses, similar things need to be required for those research vehicle if you want to allow them at all.