I think having a drive by gate to get people off a plane is a great solution, hopefully something other airlines will also consider. Doesn't have to be anything fancy, even an area they can move a stairway up to the plane and just walk people inside, move the plane and do the next one.
Hopefully good will come out of it and it can be implemented in other airports, though of course the real solution is to not send too many airplanes into the same airport, no matter what the weather is.