I note Figaro's graphic borrows from the BEA interactive where one could see the routings of other planes that night. However, for reasons known only to the BEA, the BEA no longer references LH507 which preceded AF447 along the UN873 airway by 20 minutes, nor (if I recall correctly) does the interactive include IB6024 which followed AF447 on UN873 by 12 minutes. Instead, the BEA interactive mostly plots flights on a parallel airway over a 100 NM distant.
Both the LH and IB deviated off the track because of the weather, and one would think their deviations would be the most relevant to what AF447 did not do. The benign explanation for the 'disappearance' of LH507 and IB6012 from the BEA reports is that their experience, including the communication they had with ATLANTICO, is directly relevant to AF447, and the BEA does not want to describe or discuss it further at this time.
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The five questions center on the actions of the crew and AF procedures.