Maybe. That hometown I referenced has 3k people in the city (not farmers) and 12k people in the county outside the city (mostly farmers in varying capacities). It's the only place I've lived where it's common for people to cut, mill, and dry their own lumber for economic reasons, or (ignoring parts of Alaska I've lived in) for hunting to be an economically rational thing to do. There are literally zero vehicle fires. A home or business per year or two burns down, but at the 1/100 vehicle fire rate we expect 3 fires per week, and there are zero in the last decade. It's a hot, dry climate made up of mostly farmers with extremely shoddy equipment.

Anecdotes aren't everything. If there are 1/1k fires annually then those have to come from somewhere, so your "location dependent" idea makes a lot of sense. I'm passionately curious now as to where those fires actually happen though. It's not just farmers with bad equipment in bad scenarios.