I think it is important to continue discussing possibilities. BEA is the inscrutable one, and there are too many "reasons" for and against what is and is not disclosed, that an otherwise dismissive attitude is unwise? From a human factors standpoint, it is most important to entertain a four person cockpit. It would explain to this honorary Frenchman why some cockpit behaviour was lacking, and other types present. Improper seating has killed before.