Even single family homes are built from bricks and cement. Even large ones.
It's not just gas explosion, it's 'everything', fire, structural rigidity (only ground floor houses are rare, almost non existant here), and well.. they're built to last.
https://www.metropolitan.si/kronika/tovornjak-trcil-v-hiso-s... <- a truck hit a building, and old one, and you can see the damage... one wall. The girl in the room survived.
I mean... again.. you could build a home that is "fire resistant", and we do, but most americans don't, as we see in LA.
I am not sure what built to last means and not sure if evidence exists that it makes much different over multiple generations. Those SFH built to last as you would say, will still undergo major renovations as technology improves and tastes change. Certainly when in areas that are prone for specific types of disasters, there should be designs to minimize risk but again that happens in the US but often (not always) these major disasters play out in areas of risk but the even is black swan compared to history.