WHAT!?
These are theme park attractions folks, not an in-scale replica of the entire world in which they lived.
Seriously, no one cares. People just care that little Johnnie and little Vicky get to see the characters they love and have watched on tv, and I'm sure (after just standing in line for an hour and seeing TinkerBell in the Peter Pan ride) it doesn't make sense to the common guest that they now have to traipse clear across the park to see TinkerBell in Adventureland.
And, I would point out, that most guests don't even know she's there.