What's especially egregious to me is that FFXIV's developers are very "one step forward, two steps back" in basically everything they accomplish. And they either don't learn from their mistakes or are learning entirely the wrong things.
Before Eureka, it was Diadem. Before Diadem, it was FATE grinding.
It's been five years since ARR launched, and in those five years, outside of raids or dungeons the combat system is just not fun.
FFXIV's combat system--with combos, positionals, and resource management--absolutely shines when you're juggling those things around boss mechanics (and as other posters above me have astutely pointed out, even raids are getting utterly tiring).
In the open world? NOT A CHANCE. Open-world combat in FFXIV has never been fun or engaging on its own, not in FATEs, not in Hunts, not in Diadem, and definitely not in Eureka, and for the most part all of these things share the same reasoning.
No mechanics means you're just hitting a striking dummy, and sooner or later you realize that for most jobs, FFXIV's combat rotations mostly consist of hitting buttons in a fixed order with very little variation. And while you can argue that that is an inherent flaw of most WoW-style MMO combat, that doesn't disprove that FFXIV's combat is dull and un-engaging. I barely have to look at the screen to do most of the content in FF outside of extreme trials and raids at near-optimal performance.
That's not even getting into the myriad of other confusing, baffling, or just plain bad developer decisions (or lack thereof) that have been made over the course of five years, like that complete dumpster fire of a housing system, the rampant botting, the cheating and hacking and win-trading in PvP...jeez, the list goes on.
Even something as simple as the glamour dresser is limited to an almost hilarious degree with really weird design flaws, like the fact that it deletes your physical item with no withdrawal, or the 200 item limit (necessitating that if you like glamours, you better pony-up and give Square some of that sweet, sweet, retainer $$$$$).
I've stuck with this game thus far only for the roleplaying community, but I'm finding it increasingly difficult to justify a subscription on a game that is barely above today's free-to-play games.