Why not ban mobile homes from Florida .. period?
What do you propose we do with every home that was built before 1990 or is not up to "Code"? Why not just ban Cat 4 hurricanes? LOL
Given that trailer housing is incredibly cheap compared to a conventional home/lot, I'd prefer that trailer dwellers simply accept full responsibility for their financial hardship in the event of a natural catastrophe. In other words, I'm not one to dictate to people where they can live, but I am one to object to our government bailing them out.
Private insurance can cover them as they see fit, based on probabilities and construction.