Well for starters, Clinton won it by 6 points, and it's been closer than that in every election since.
Looking at the county map, it's amazing how much the Gulf Coast north of Tampa has swung towards the GOP. That seems to be a less discussed aspect of Florida's political geography that has kept the GOP competitive despite massive Dem gains in the I-4 corridor and in the Miami/Ft. Lauderdale/Palm Beach area.
Well, that also contributes to my question. How was WJC able to win FL so handily, which in turn enabled Florida to be called right away?