"He did make some mistakes," Fish and Game Sgt. Brian Suttmeier said, citing going alone and leaving the marked trail as likely errors.
"Fielding was only able to survive the night because he had adequate gear for the conditions."
Not only was he properly equipped, but:
Someone knew where he went (to solo Lincoln's Throat) and someone called SAR when he did not return within a specified timeframe (SAR was called at 2AM, 5 hours past 9PM, which is about when I'd expect to return to Boston from Franconia Notch.)
He did a whole lot more stuff right than Aron Ralston, and that guy got a movie and a sweet ice-axe arm out of the deal.
I am very curious about the decision to bivvy instead of keeping moving and hiking down the AT or another trail in the dark, but I am sure there was a reason. Is the resucee an NEClimbs user? Seems likely. If so, do speak up!