Well said! Wood frame houses can burn, but if built against fire hazards, won’t be as likely to burn. Besides firestops between first floor and above and other measures, concrete slab foundations can be helpful, too.
Problem is, many county jurisdictions in northern rural areas forbid frost-protected, shallow foundations (e.g., for installing PEX tubing for solar heating systems), and they forbid such designs without any good cause.
There are also compressed earth blocks, but the engineering/inspector racket stands in the way.
Perfectly well aware that codes and other regulations often don’t make a lot of sense.