who should pay for the QLD flood damage?

The political debate is now well and truly up and running as to how best to pay for the QLD (and now Victorian) flood damage. There's been plenty of talk as to whether the Feds can keep their "return to surplus" predictions, and whether initiatives like a temporary Medicare levy increase should be adopted?
While it's obvious that the Federal Government has a meaningful part to play in the disaster recovery, we need to take a step back and just consider for a moment who is really responsible for funding the recovery efforts?
There's are a whole range of issues at play here (which hopefully the judicial inquiry will look at), and they include;
Do people who willingly choose to avoid paying the "flood premium" on their insurance expect anything in return?
What about the (unwritten) assurances that after post 1974 building of the dam that Brisbane was "flood proof"?
What about the people who live in areas where "flood cover" is not provided by the insurers?
Do we need go down the path of compulsory "force majeure" insurance as happens in a number of places around the world? And how would this affect the viability of the insurance industry (not to mention the effect on premiums)?
Alleged mismanagement of the Wivenhoe Dam by the premature release of water from there (as insinuated in The Australian newspaper)? What's their responsibility in providing compensation?
And the big daddy of them all, what about the planning policy failures of (generations of) local, State Governments, with their cow towing to greedy developers (with brown paper bag in hand?) who've consistently downplayed the threat of natural disasters in order to get zoning approval to build profitable properties in flood prone areas?
So I now go back to the original point, why should everyone start pointing at the direction of the federal government with begging bowl in hand? The reasons for the unprecedented damage caused by these floods seem to (at face value?) lie within the purvey of the State authorities. This seems to be their mess....so let their tax payers clean it up!