No intent to diminish the crew's achievement, but as discussed above that stretch of the Hudson is well protected from swell, and is close to flat calm (so a good choice of target). I reckon that moves ditching from `impossible' to `very difficult'.
I love the Faux News/Fox Noise report about hard/warm and soft/cold water. Utter bollix. Pure `Brass Eye' episode three - they might even ascribe the success of ditching to the `heavy electricity' coursing through the FBW system:
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