It is just a specific kind. While some authors write specifically to make an argument to an audience, many others write because they want to follow their personal muse. Sometimes writing is a catharsis, or an exploration of self. Sometimes authoring is a sharing of experiences, fragmented images, or just of a point of view. Sometimes authoring is marking a path for an audience to follow, or perhaps just presenting emotional resources the audience can construct into its own vision.
Interactive communications question the validity of a linear story itself, and justifiably so.
There are many ways to communicate, and each has just as much value as the next depending upon how one wishes to affect one's audience. The Grand Argument model described by Dramatica functions to present all the ways a mind can look at an issue. As a result, all other forms of communication will be using the same pieces, just in different combinations, sequences, or portions. In our example, we indicated that the less we said, the more the audience could use its imagination. A Grand Argument Story says it all.