NoD - All I'm stating is that comparing a crash on a calm icy river with an Airbus as against a crash on a windy open ocean with swell and waves with a 777, is the equivalent of comparing apples with oranges. We have no ditching crash record for a 777 to refer to for comparison. We have a crash into a seawall, and that crash showed us the 777 is built like a tank - but it still can't be compared to a ditching for comparison purposes.
Somewhere out there, there's some identifiable pieces of MH370 wreckage, and they will almost certainly appear in the next few weeks.
It just needs a particularly alert person, and the right circumstances. It will probably be a fisherman.
How many times have people found a critical item that was being searched for, that couldn't be found - despite thorough searches being carried out - and the finder found it by pure accident, by looking at the right place, at the right time, in the right light?