The gravel part isn't the point here. You, in Alaska, have to make a determination if the runway is suitable for landing. Whether it be to soft, flooded, whatever. At Colgan (and other airlines, corporate, private airplanes, etc.) we had to make a determination if that nor'easter in Maine that was brining a foot of snow to KRKD per hour would make it OK for us to come into land. The same threats are involved here. This is with the station calling braking action 'fair', them telling us that the WX was improving, and that they needed us to land in order to meet their monthly EAS quota or we would be fined.
How is it any different bringing in a Piston on a gravel runway with marginal conditions or a Beech 1900 on a paved runway with marginal conditions? Both planes need to land before the end and the crews have to make good decisions on how to do it safely. Or if it is even possible to try now or later.