It covered at area that was the size of Germany and France, and at its biggest it covered an area the size of New South Wales. New South Wales and Victoria ALSO then got flooded. In terms of deaths, yeah, we had it easy. In terms of economic damage, we had it fucking terrible. We also had it really easy compared to Melbourne. My sister was working at Flinders Street Train Station when the floods stopped the entirety of Melbourne in its tracks and people began to riot. To fucking RIOT. The most that Queensland had was some idiots going and looking at the rising water, but Melbourne had RIOTS.
Still, if you're going to look at it by a size to death ratio, maybe you should wait until some of the papers on the effects of the flood against the Moreton Bay area come out, because, you know, it's not like that whole area got polluted with mud and debris or anything.