This is just one of many examples I've seen & i know the park isn't full of rides but its a pretty good way of showing how small the map actually is & how transportation will be almost pointless if this map size remains the same.
https://scontent-dft4-2.xx.fbcdn.net/t31.0-8/14188119_1195160033837886_3606931161431314281_o.jpg
And yes I looked at the actual Disney World main street station, so I know it should be to scale going by the photos & other info online, and it looks like it's too big for the map, both this one and my own map, and my map has everything crammed together in it, yet it looks like I can't fit a whole lot more into it currently, I can't imagine how anyone could recreate any real world theme park in the space, as others have said, it's not just rides, it's buildings, scenery, paths, ques, staff bulidings, backstage areas, water features, trees, plants, flower beds, benches, and on & on.
Yea, currently a lot of the buildings are just for looks, but if there are to be more food stalls, drink stalls, gift stalls, what ever have you, the space you THINK you have might get filled up pretty quickly, more so if you want to make a faux parking lot & hotel for your guests to stay in so the area looks like it could support a theme park in it, I've seen some great stuff online from you folks that shows off things like that, so I could see the map size become an issue rather quickly.
Heck currently with my park the way it is, I've been trying my hardest to keep at least 1 square of space on the outside of my park for the train, not as easy as it sounds, believe me when I tell you this. Something like POTC form WDW or DL would be a huge thing that would take a lot of room if made to scale in PC, or The jungle cruse for that matter, and Disney for the most part doesn't have coasters, it mostly indoor rides, add coasters to the mix room becomes a problem unless you cram everything practically on top of one another, and twist the coasters in & out of one another, which isn't a bad thing actually as it might increase the stats of both coasters, or all of them depending on how many you got going over, under through the others tracks, but still the space you have will become a mess of tracks going every which way.
I don't think folks want to do what I've done & just cram it all together in the space that's available to them, they want their parks to be spread out.