As far as the autopilot previously giving several audible and visual warnings previously in the drive, and not detecting his hands on the wheel 6 seconds prior

As far as the autopilot previously giving several audible and visual warnings previously in the drive, and not detecting his hands on the wheel 6 seconds prior to the crash... The Tesla model S detection of hands on the steering wheel is, in my experience, not very reliable. It often detects my hands off the wheel if I'm holding it lightly, ready to take over. And it often detects me taking control and disengages if I am holding it firmly. And if I'm paying attention to traffic, I will about a fifth of the time not see the visual warning in the dash. These additional pieces of data can't really provide information on whether the driver was paying attention. However, I am really curious about the reports that this driver had several times reported to Tesla that the autopilot was trying to drive him into this barrier. If so, I wonder why Tesla hasn't reported that fact. And why the driver would be using autopilot in that area at all, let alone not paying attention while doing so.