It basically served as an act of solidarity for the Eorzean Alliance, with the added advantage of being a morale boost, of sorts, for the Ishgardian people (who were experiencing a "everything we've been taught to believe over the past thousand years was a lie" epiphany) and needed to find their place, and prove themselves worthy, to join the Alliance.

It also put Emmanelain and House Fortemps back in a better light.