Musk said the logs show that the car wasn't even in autopilot mode. Driver maybe was trying to escape the fire and thus was not found in the driver seat. Although this is just as much speculation as assuming the autopilot was tricked so we should just wait and see what the investigation will show.
Govt has witnesses saying the dead passengers were showing off the Autopilot. I see no reason to believe Musk, a serial liar with a massive incentive to lie here. He even hedged by saying "data recovered so far" doesn't show Autopilot engaged.
Did you read my post? I didn't say I believe Musk. I said both stands are equality useless speculation and we should simply wait for the investigation result.
Either way one thing is rather certain, stupid humans where involved and are most likely the sole reason for the accident regardless of which story turns out to be true.