I think this is kind of where the OP is coming from...
By the definitions mentioned earlier, just about anything in a theme-park could be considered an "attraction". Therefore, you either list every single thing on the map as an attraction...or...you reserve it for rides or things that offer special physical thrills, movement or motion, etc. Something you just walk-through or walk-up to or "enjoy along the way" should not really be considered attractions in terms of classifications on a map.
Imagine a huge, massive movie theater where they have to hand out maps for people to find their way around the complex. If you highlight the "attractions" on the map, one is going to assume those are movie theaters because the majority of people going to a theater are there to see a movie. Some might consider the arcade, the popcorn machine or the life-sized cardboard cut-out of a celebrity a draw, but the movies are what the majority people are there to enjoy, so those are what you list as the attractions on the map.
So while I agree that what one considers an "attraction" can be subjective, I think there is a certain threshold that has to be met for something to called such on a theme park map when the general destination for most park-goers is going to be the rides of motion and of physical movement thrills.
Heck, my wife and I consider the cake cups at Cheshire Café an attraction, but I don't think that's listed on the park map as such
Just IMHO of course.