The way I figure it is thus.....I can bring check one bag free with Jetblue, but get RAC for my flight home, or I can bring two checked bags, free, with SW, but lug them back to MCO. There are times when just one checked bag will work. But if I'm bringing my Aero bed, I usually need a second bag for that.
It's just not that big a deal. At some point, SW and RAC will be available at all resorts. It's just a question of when. I think we'll suddenly hear that it is an option. I doubt we'll hear that 'SW is a participating airline at every resort starting on July 1' or such.