FH-1100,
The crisis occurs when the water above which you are flying invites certain death if you do make that decision to ditch!
There lies the other question I have always had about drawing the line at operating in "all sea states and wind conditions".
I would suggest if one is out over the Oggin in sea states that exceed the tested capability of the aircraft emergency flotation system then one is taking way too much risk. It does not have to be a mill pond and enduring a long rough ride in the rafts is one thing but to know you will immediately roll over and almost assuredly sink upon alighting on the water is asking a bit much.
Lord knows I have seen the North Sea below me when I preferred to pop up into the clouds and not have to look at the sea knowing it was telling me it was waiting for me with a pair of pinking shears in one hand and a big steak knife in the other just as one of my Ex's was prone to do when seeking to avenge some poor thinking on my part.