The statistic is a reality. I was tongue in cheek, expressing a view that there are other broarder issues to consider.
Many parts of Australia flood on a regular basis. Nothing new to see here. What follows are fly in fly out and short term actions. They are genuine and necessary support regardless of the brand of politics involved.
P.S. The bench marks and data used to determine 1 in 100 year events is not an exact science. The hypothesis has a confidence level, also a statistic that is limited by the size of the real data set. Our local government 1 in 100 year flood maps have a 1metre upper margin line as a measure of the uncertainty.