I don't think this has anything to do with FLL. MCO is the busiest/most pax in the state if FL.
After another record-setting year, Orlando International Airport now is the busiest airport in the state of Florida, with 44.6 million total passengers passing through in 2017.
Orlando International, which is among the 15 busiest airports in the U.S., surpassed Miami International Airport to claim the top spot in Florida.
Scary part, there's much more room to grow. FLL/MIA is basically at capacity. There's no more land. MCO keeps getting bigger. Not to mention passengers from roughly 90 minutes around MCO, use MCO as their "hometown" airport.