I guess that, as small village in an economically depressed landscape, didn't have resources for hiring full time enough professional firefigthers. Moreover, all remaining people with houses in the area would be very interested in stopping the arsonist as soon as possible.

"Invisible" systems that just work flawless in normal circumstances, get out of the road and crash in unexpected ways on crisis times or even after the crisis has recovered.

Most emts and firefighters in the us are volunteers.