The fire trucks do not know where the plane will stop on the runway. A plane coming in to land will be going well over 100 mph. The fire trucks cannot be on t

The fire trucks do not know where the plane will stop on the runway. A plane coming in to land will be going well over 100 mph. The fire trucks cannot be on the runway ahead of the plane (lest they be taken out by the plane and make the crash worse with the side benefit of now having more victims and less first responders). It is physically impossible for the firetrucks to be at the plane the moment it stops.