Maybe I am a complete Dullard....but why not simply require Supplemental Air Devices for all over water flights and prevent folks having to soley rely upon a single breath to escape from a submerged aircraft?
If one smacks the water with some force...gets the breath knocked out of you....as is highly likely...would not having a chance to get some air be worth its weight in Gold?
Again....it sounds like the Government wants to half ass safety requirements!
To repeat my usual rant.....just what is a human life worth?