Think about what you’ve just written… you’re saying that a stone building is less safe than a wood building in a fire.

Have we seen any stone cities burn down lately? Because I haven’t seen London burn down since they replaced all the wooden houses with brick in 1666.

I am not sure the wood framing matters much in this case. The fires are burning houses because the roofs are flammable, or embers are getting in the house through the eaves or a broken window. So in the end you have a completely burned down wood-framed house or a hollow concrete house that is no longer structurally safe.

WW2 saw urban firestorms in European cities built of brick. The insides are still flammable.