First, it doesn't rhyme. The front, suspension, year and edge are all rhymed by Ian, and "shun" is not rhymed.
Second, the artistic conception of "shun" is not "hanging". With the word "hang", you can feel that the wind is positive, indicating a downwind. As you can imagine, when you raise the sail, you will see the sail hanging in the air. The word "Shun" can't reflect this artistic conception, so it loses its aesthetic feeling and imagination.