Per ff14net.2chblog.jp/archives/49173784.html

Weapons 11/12/13 are 30 medals each.

That's 225 medals, that aren't 100% drop, for largely glamour items. That is ridiculous. FATES are largely disliked by the NA community. FATES with RNG attached (Atmas/Luminous Crystals) are downright hated.