Just because another country does something stupid doesn't make it a good idea. Also, as noted in another comment, the one time this was done in Sweden, it was a fire
on a military base.
In the U.S., cultural resource protection is one of the considerations in wildlands firefighting, and a significant number of wildfires in the U.S. west occur within designated Wilderness areas where minimum impact suppression efforts are required by law. This means, e.g., you can't run a bulldozer through to cut a fireline in Wilderness, and in some cases can't even drop slurry because it might cause permanent staining on rock outcrops, damaging a natural resource. Dropping weapons-grade bombs is going to be a non-starter, as it should be.