slats11, on pdf p. 18 (of 35) of the BEA document NeoFit linked to, (thanks for the link) the blue line shows quite precisely the cumulative boundary of the aerial searches flown by Brazil and France through June 5, 2009 in the area of the last known position. Again, if large pieces of the wreckage, e.g., the VS, were in this area prior to drifting north or west and being located and recovered, they were missed.
Thus for your theory based on takata's original hypothesis -- while I can't speak for him and I don't believe he has posted on this thread in many months, even he backed off his hypothesis if I recall correctly -- to be credible, the Brazilian and French search was very inadequate, if not incompetent, to have missed such large objects.