For what it is worth (IMHO), I wouldn't go getting too "excited" by the bottom spread. There are four important factors that have helped each independent part of the debris to arrive where it has. They are:-
- Current profile, i.e. vector and velocity at different depths.
- Object profile and terminal velocity.
- Distance, i.e. depth of water.
- Time.
Generally, those items with low density and poor hydrodynamic profiles will have taken the longest time to reach the bottom, and those with the highest density and best hydrodynamic profiles will be the fastest. The observed debris pattern would suggest that the overall current vector was about 270°T, and as the aircraft has impacted with a high AoA and high rate of descent, its residual horizontal momentum was arrested in less than 10 meters. It could further be deduced from the sidescan sonar image that those objects located to the east (right) of center arrived on the bottom first, probably with the exception of the eastern most outlier. The remaining objects heading west now fit into a low density/poor profile category and are the stragglers.
As for the outliers, their positions will ultimately come down to what happened as the aircraft broke up, and whether their profiles gave them the opportunity to "kite" off rather than "spiraling/spinning" to the bottom.
We all think we know what air is, and likewise water. As simple as water may seem, its structure has properties that are anomalous when compared with other liquids.
London South Bank University - Structure of Water