I doubt Florida is +5 in a Clinton +5 race. Obama beat Romney there by 1 point in a D+4 race nationally. Will Hillary actually outperform Obama by 3 points?
I don't think trying to compare to past races would be
the most accurate here. You can't expect the electorate to be like 2012
(demographics alone makes that assumption moot), especially when current data shows what appear to be decently-sized shifts in the party coalitions and depth of support among certain demographics.
However, not really saying Florida is definitely going to be Clinton Country, either. Just that the dynamics have changed somewhat.