The sad fact of the matter is that triage is being attempted on a country scale. What is more important - getting basic supplies in (food, water, medicine) using awd vehicles, or trying to use scarce resources to bring in old ambulances that cannot travel the roads in their current state? These are items that need to be in place BEFORE tragidy, not after.
True but there are cities with streets. The ambulances will be put to good use I am sure. Food, medicine and clothing are on the way. But ambulances, even old ones would help to alert and clear traffic in a rush to get a life that hangs in the balance. The need is genuine.