Now how about the fuel?
How far into the resv + alt, or just resv, did they burn? All that tooling around at 140 wasn't accounted for in the original dispatch fuel, and MHT sure isn't an ETP destination, right? I don't think you guys carry that much extra around to begin with (I don't think anybody does anymore), so what did they land with?
But did they consider that MHT (IIRC) is a single suitable runway airport, that someone else's blown tire might have shut down the only game in town, and that BOS and the rest of the airports around aren't as easy to get into as DAL?
Or did the decision to continue on commit them to land at MHT, without enough to go elsewhere?
I'll hold judgment till the facts are out there, but if I were one of the guys in the head shed I'd sure have some questions about this one.