Huge tourist hub and destination for a lot of flights. Need lines from both the northeast and Midwest to capture a majority of the air traffic going there.
Speaking as a former midwesterner who would drive down to Florida with their family for vacations this would be a god send, I'm sure most east coasters would agree too.
The blue green are just a merged line I think. Florida is. Kst heavily populated on its coasts and then part way down you have the ver glades. Of you look at a map of Florida now this is more or less what I75 and I95 do.