IMHO the blame lay with the airport, the airlines asked for a remote deicing point nearer to the runway, after last years fiasco when snow fell, because the hold over times are not sufficient to do the de-snowing on the gate and a 10 to 15 minute taxi time, the answer from the airport - NO CAN NOT!
I know 1 747 was desnowed and by the time it was completed it had to be done again as the hold over time was up! 6000L!!!!!
