My main complaint about EW is honestly I wish more of the zones focused around Garlemald to flesh out lore there but at the end of the day the expansion was fine and absolutely felt finished.
I still never get the complaint about Island Sanctuary. It's an alright addition to the game that adds a nice, calming thing to do. If you don't like it then might I suggest just not doing it? There are people who don't like Alliance Raids so they just do Crystal Tower than ignore the rest, there are people who don't like Diadem so they never touch it, Eureka, Bozja, hell even something like Gold Saucer I've seen people avoid it like it's the plague. Just do the content you want to do, no one is forcing you to do stuff you don't want to, all you're missing is titles, mounts and minions. There's nothing else that's really all that lost by not doing Island Sanctuary.
