I know this report. This does not deal with the bias problem however. Obviously it reduced the number of accidents in good road conditions where the autopilot works and is primarily used (much like auto-stop feature did and BLIS). Particularly after they introduced the driver monitoring (this report was conducted after that) - now in fact the driver using autopilot is likely more alert then one not using it.
But that does not indicate anything about conditions where autopilot should not be used in which it is gravely dangerous.
It is all about tail of the distribution, which why it is not so obvious.
But that does not indicate anything about conditions where autopilot should not be used in which it is gravely dangerous.
It is all about tail of the distribution, which why it is not so obvious.