I got a reply from dan a long time ago about this very thing.
He was adamant about just replaying from the beginning, even when he was talking about using blockchain for MMORPG backends. (when 99% of that data would be useless, as in your HP is at 100% most of the time, and the game doesn't care how much you lost in last week's fight)
And what really sucks this hard fork is that they were off by orders of magnitude.
yesterday - NEGATIVE 600 quadrillion
today - positive 400 billion (and falling fast, from manual commenting)
That there is missing the ball park.
And, i very much agree that back to back massive hits was a bad idea.
RE: The HF20 problems were anticipated by intelliguy -- no one listened. (Open Letter to STEEMIT)