Also...
Do we even yet know if the Captain was definitely resting and if so, whether he even made it back to the flight deck..
If he was and the answer was no, could current and past A330 flight crew confirm he would likely have been called back if there was time to focus on such things.
If this could be shown we perhaps could say with more certainty that this a/c did indeed meet its sad demise after one rapid fall from cruise altitude