One problem is that Florida is overpopulated with people who want the warm weather and beaches, but not the downside of life in Florida.
I went house-hunting in Florida last year, and with all of the over-building and destruction of wet areas that provide a cushion for storms, decided that the area is neither sustainable nor evacuable. Plus, there was a lot of new construction, before fix-up was even done from last year's 'canings.
What would they ever do with all of the Seniors and disabled who can't drive if every area a storm might hit was evacuated? Fact is, maybe people should have supplies on hand for the season, hunker down, and hope the storm isn't too hideous. You just can't put millions of people on the road every time a storm might hit.
It's getting to be a rather ugly game of Simon Says. However, the part that Simon said that they should have listed to, they ignored. They had 1 whole week to prepare.