I guess it's time

[Claymore65]

Casuals have too much to do, raiders don't.

That comes down to player demand. Let's say, for example, 10% of players raid Alexander Savage. The other 90% of the playerbase spend their time doing...casual things. Should the majority of Dev time and effort go to something that pleases 10% of players, or content that 90% of players enjoy?

To be fair, the issue isn't anywhere near that cut and dry, but that is part of the issue. There is no content that everyone will enjoy, since everyone likes different things. There is also a hard limit on the content they can produce in a reasonable amount of time. And to be fair, the FFXIV Devs make very large content updates if you compare them to pretty much any other MMO team on the market. Even WoW, despite (I assume) having a significantly larger team, barely produces this much content, especially on a 3 month basis.

That said, I can totally understand burnout. It's a very challenging issue for anyone to solve. There are certainly improvements to be made. Things like Deep Dungeon show they are moving in the right direction, while still trying to maintain the things people expect (new dungeons, raids, and story). And soon, we have an avenue to explore that (a new expansion). One other factor to consider is that the game isn't that old yet. WoW and FFXI have been out for significantly longer periods of time, and thus have much more content.