As an owner of several "exclusive" DLCs (all DLC minions save the Wind-up Cait Sith, Bahamut, and Dalamud, and owner of the Diamond Dust emote), I don't care if they were offered on the Mogstation at a later date - probably a year or two after their release with physical merchandise to grant that period of "exclusivity" (but it could be shorter and I wouldn't really care). They're digital goods for a video game; I don't tie any sort of prestige or exclusivity to them.