The governments know this and yet set the insurance premium price ceilings anyways.

At some point you have to consider that as indistinguishable from having a policy to drive people out: deny them insurance, wait for natural disaster, redevelop the now-very-cheap land however the government and its developer friends wants. Whether such a policy is adopted on purpose may not be possible to tell. You'll get called a conspiracist if you even hint that you wonder about it. But you know these people know -it's hard to believe that they don't- what happens when you set price ceilings.