At this stage in the AF447 investigation the BEA issued an interim report with everything known, including full details of the ACARS messages, crew bios, cargo manifest, the works.
Not quite true. The AF447 accident happened on 1 June 2009 and a preliminary report was issued on 2 July 2009.
ICAO Annex 13 prescribes that a preliminary report shall be issued within thirty days of the event. This is what BEA did, give or take one day. Despite the agony surely felt by all those affected by the MH370 disappearance, the Malaysian authorities still have 12 days to comply with the Annex 13 requirement.