I believe that "Get Back On The Plane," in the form that's it posted on NicksFix, is still prose... not song lyrics.
It probably would have been re-structured somewhat, if it were actually given a melody, etc.
But I have to say that... even though Stevie's heart was in the right place... as a song it would have been terribly clunky, and probably cringe-worthy.
It's not nearly as timeless and affecting as "Illume."
I mean, nothing can be as bad as the tripe Toby Keith was inspired to write after 9/11, but Stevie could (and did) do better.
Maybe she'll lift a few passages from it someday, and turn it into something else... but who knows.