The story is considered to be the plot line of that type of "love story" that most girls look for when they have their high school boyfriend.
The term "spoilers" refers to the fact that finding out what is about to happen can ruin the surprise of waiting for the plot line to be revealed in the natural scheme of things on the program.
Almost every plot line on a soap opera contains some sort of truly odd romance, an untimely death, an unsolved crime, or a bitter family dispute that is far from reaching resolution.
Instead of coming out of nowhere or not being relevant to the story, a Disney movie song helps to further the plot line along more with either scene or character development.
One thing that Swift fans tend to love about her music videos is that there is generally a story or plot line to the music video rather than just being a bunch of scenes featuring her singing.