Airline Info
As for operations, I think that you would find that 10kts tailwind limit is pretty standard for airliners operating in the U.S. -- of course further reduced by charted performance limitations. Also, weather classified as heavy rain is avoided for takeoffs and landings.
I heard an opinion from guys who have flown into KIN often, that the controllers range from good to bad, and tend to issue the weather that they believe you need in order to operate.
The runway isn't grooved, and will puddle in heavier rain. Also, I heard that the touchdown zones have a lot of residual tire rubber.
The fracturing of the fuselage looks like, from the photos, to have happened with crossing the rocky embankment.
When the "real" accident investigation reports come in, we should be able to change the focus of the pprune discussion away from the rampant speculation, including my own.