FFXIV is basically designed after WoW, there is no denying it. Yes, it does have its own identity, but if you think they didn't take game design queues from WoW you're dead wrong and you'd be daft not to see that.

Anyways, FFXIV should take other systems from other MMOs not just WoW and add their own twist to it. Nothing is wrong with taking other games ideas and iterating then in a different way. Hell, why do you think WoW is such a major success?