Hi,
First off, would the normal response to: :
At 2 h 06 min 04, the PF called the cabin crew, telling them that "in two minutes we should enter an area where it’ll move about a bit more than at the moment, you should watch out" and he added "I’ll call you back as soon as we’re out of it".
be to secure the cabin ?
I assume your question has to relate with the many victims found on the surface and thus apparently were not sitting in their seats or did not have their seatbelts closed ?