It's possible, but I'd say unlikely. Ultimately, it depends not just on how well they play, but how well (or poorly) other schools ahead of them play. Miami is currently 105 games behind UNC, the current #25 on this list. They would need to be pretty darned successful over the next two decades to close that gap, needing to net over +5 games a year, which is a pretty monumental task. FSU is even further behind (200 games!), so it's basically impossible that they can get there, even if they manage to turn their current slide around. Of the Florida schools, the Gators are best positioned to get into that list since they're currently only 32 games behind UNC. If they continue to have the level of success they've enjoyed over the last 18 years, they should be able to close that gap.
Remember, this is an all-time list. Many of these teams were historically much more successful than they are currently, or have been in recent decades.
God your right I didnt even think about the win differential. Its amazing to think that this list possibly could not change for a few decades. +5 is crazy.