Not entirely sure if its true but heard Yoshi P and the rest of the Ffxiv devs have little to no say on what gets added to mogstation. A whole other team in SE is supposedly responsible and if they demand, a new mount, new outfit, new emote, Ffxiv's team just has to provide it. Not to mention they are also contracted with some companies in China and I think Korea as well to provide new mogstation stuff on a regular basis.