I must ask, how old were you?
Young kids do not comprehend such things as you described above. Neither do people who have never been to and/or are unfamiliar with the park. Rather, they see the object as it appears, a natural thing for a person to do. Does it look like a spaceship? No. Does it look like the earth? Maybe the shape, but not the color.
Does it look like a golf ball? Sure does!
Growing up, I was confused as to why its actual name is "Spaceship Earth," because it's not a spaceship. I still think the actual structure should be named "The Ball" or "The Epcot Ball." Perhaps Disney will do that if it gets a daily projection show.