Furthermore, depending on how they look at feedback, it is easy to find whatever suits their own taste and say they are listening. That is the nature of not having a good system of providing feedback.

For all the bad faith they earned. Wizards of the coast has had an excellent system for feedback. A fourm for every class. It ask how you feel about the class, how much you played that class and how much you've played d&d as a whole. The fourm ask about the overall feel of the class and its power, but also each individual class ability and spell with extra text boxes for more detailed information and reasoning.

If the xiv developers made a similar fourm, they'd have a much deeper understanding about how people feel about jobs and where the pain points of the jobs are.