People want to be immersed when they come to Disney. That is the big advantage that keeps them steadily growing, even when "better" attractions are being built down the street. Of the four parks, Animal Kingdom is the only one that keeps the guests 100% immersed 99% of the time... Chester&Hester keep that from being 100%. Instead of making single attractions immersive, Disney makes the attraction and the area completely immersive.
On the note of NFL, the land itself is extremely immersive and well done, and this helps to balance out the fact that little mermaid and Mine Train are not what some feel they should have been.