To be honest, I think XIV devs just don't have any idea how to properly implement content and innovate. One of the biggest problems plaguing this game is the fact that the content cycle has become increasingly stale and uncreative. Side content is not designed with the intent of making it fun but instead incentivise you to get you to do the content. (Diadim, PvP, Eureka, Verminion) Then theres the fact that Yoshi doesn't even want to release blitzball because he doesn't know if people will like it the way they implement it so decides that turning it into football manager is the quickest and easiest way to get past it, just screams that the fun aspect is not taken into account. That and the fact that the devs are giving us less and less content per patch. 3.3 literally has twice the amount of content 4.3 has.

Edit: Is there any reason to even buy the new expansion at 5.0 launch when there is going to be a 6-8+ month long content drought?