For whatever reason the "leak" occurred, it helped clarify the direction that the discussion needed to progress.
I can understand that people want to discuss this, but this is an investigation and there is no right direction for the discussion other than that inferred by being in possession of all known data and information. The idea that it good of those nice busy BEA people to help us along is just nonesense.
It just isn't right to release a portion of the known story. I can understand an interim report so long as it states all what is known and the current threads of investigation. As they have the FDR and CVR, I believe, they should release nothing until such time as they can definitively state the cause or most probale cause as complete effort. Anything less appears to be playing the media.