How do you arrive at that conlcusion? And how does that matter? They were in no position to do anything about that. The pilots were. And didn't effectively take care of it
This has indeed no importance to technical point of view and therefore this is not even important to the BEA investigation
By cons .. for the trial to come (when ?) it is very important
Be sure that the families lawyers will do everything in their power to demonstrate that the passengers knew that something unusual was happening
The benefits (money) will be greater if it is proved that the passengers knows that it was a problem (mental suffering .. stress .. etc ..)
BTW lawyers will certainly advance that it is because the captain (not in the cockpit but rather in the cabin) realized that something unusual was happening that he joined the cockpit
Hence his question (first words when he is in the cockpit)
What are you doing ?
And not ..(seems more logical for someone who don't know)
What happens ?
It was also some calls by one of the " cabin personnel ? "