That's not how it works. FFH would be taking excess of loss on homeowners (they've gotten out of quota share / 1st dollar of loss there). Thus, if an insurer wants to lay off any losses over say $25 million, up to $200 million, FFH might have reinsured exposure with a maximum loss of $175 million. It is more complicated than this as usually there are many program participants, but this is the approximate way to think about it.
Also, storm hitting Tampa (or any metro area) directly implies greater losses for FFH than not as they have a lot of commercial business where they would also take loss (for instance, business interruption).