In those conditions in Australia there would likely be a total fire ban including things like bbqs, welders, anything that might make an ember or spark. I'm willing to bet the general populace's grasp of fire safety is not real strong over there having not experienced it before, it would be like expecting Australians in cities to know how to drive in snow. Also betting that emergency services aren't scaled to widespread simultaneous urban fringe fire risks. When people talk about "climate adaptation" it includes stuff like whole new swathes of the world having to understand fire weather, and meeting to resource emergency services to expand to handle it.