Yeah but having to manage 2 PSN accounts, which means separate trophies ... friends lists, etc. Anyone you meet on FFXIV will have to friend you on that PSN and not the main one you already purchased a lot of items on .. plus the PS4 was already registered to the NA PSN.

This is something that isn't on Sony to fix - it's SEs software. SE can issue a patch to the 14 client that lets any account play on any copy of the game once its installed. This is not talking registering a copy of the game, this is letting you log in. If your account is flagged as having PS4 access, you should be able to log into a PS4 whether it is NA or EU or AU or JP. The thing is, it's not even region locked to the PS4, it's region locked ot the PSN account. But why? She can play on an american PC just fine.