[sjwright]

I agree, the issue in this case—and indeed with most Autopilot-related incidents—wasn't anything to do with the driver taking his hands off the wheel, it was the driver taking his eyes off the road.

The warning message says "Be prepared to take over at any time." That is clearly the exact opposite of "You may now focus your attention to that laptop on the passenger seat."

Yes it is a concern that Autopilot is failing in some circumstances. But whatever Tesla says or does, the road rules say that the human driver is always responsible in cases like this.