To me beta testing should be a long period of time where the computer is running while humans are driving, with deviations between what the computer would do if it had control versus what the human actually does being recorded for future training. The value add is that the computer can still be used to alert to dangerous conditions, or potentially even overriding in certain circumstances (applying break when lidar sees an obstacle at night when the human driver didn't see it).

The problem is that Uber needs self driving cars in order to make money, and Tesla firmly believes that their system is safer than human drivers by themselves (even if a few people who wouldn't have otherwise died do, others who might have died won't and they believe those numbers make it worth it).