I'm new to Twitter myself so unsure but I was told by a friend that it shouldn't matter as long as you include all of the # and @ that they ask for. By putting @FF_XIV_EU you are tagging them, so they should see it even if it doesn't appear in the # feed. I think I remember someone saying in the NA contest that they don't show new members without follows in the # feeds as they got a lot of spam messages in the feeds before.