I smell Bullsh*t.
I guarantee that any human driver who decided to obey the rules of the road with exact precision - always deferring to someone else with the right of way and always taking the initiative when he had the right of way - would get into an accident in very short order.
I know one intersection where I have a clearly marked right of way but where I always slow or stop because I have seen morons ignore a yield sign and sideswipe someone about a dozen times.
Also, I drive maybe 750 hours per year - one of these cars probably drives 300+ hours per month.
The more hours you spend on the road, the more terrible drivers you will encounter.