Living out here I can say in general dealing with hurricanes in FL is a roll the dice scenario... Being a narrow peninsula state you have no idea where to go... The way they do mass evacuations it's organized but because there's only one way out the state (north) depending on when you leave you might end up on the road for hours looking for somewhere to stay, the likelihood of finding gas will be a challenge, and the storm can still take a late turn and head right where you are...
Even in state, hurricane projects to Miami yeah they can slide to Jacksonville, but then the hurricane heads that way... Complacency is a factor to some but as a whole it's much more than that... A bunch of unfortunate decision-making