Let's put it this was with Florida... on 2016, when Hillary didn't win States with ease early and it went to Trump, I assume the same way with Trump now. Everyone is assuming Trump winning Florida is a given, but with him having to battle for PA, MI, WI, Etc.
But say election night Florida doesn't easily fall to Trump, and it takes hours... upon hours... upon hours to decide a winner... then that means Kamala has already won the election even if she doesn't win Florida.
Election Night is a arm wrestling match for the swing states that people think are in play, but if Florida or Texas are taking a while to decide a winner while Pennsylvania is saying Kamala already won... then its saying Trump is having a harder time winning states he should win vs. Kamala's states she should win.
If Florida goes Kamala's way, Trump's wrist is effectively broken and the election is over before the rest of the swing states come in.