Creating a character on Balmung is not impossible. I have alts there. Whether it's Legacy or not doesn't matter anymore. Try early mornings.
Keep up with this page:
http://na.finalfantasyxiv.com/lodest...06d0909189e479

"This information will be updated at the following intervals:
4:00 a.m./ 8:00 a.m./ 1:00 p.m./ 6:00 p.m./ 11:00 p.m. (PDT)"

Amusingly, it's open right now. Go make a character.