No underwater area in any game has ever been liked. Humans, by and large are too stupid to understand being in an X/Y/Z axis. This is why most humans never look up and if one is looking up the rest do too, even if their's nothing there, try it sometime.
Of all the games I have ever played, Vash'ir was the best underwater zone by far and most players hated it. Malygos was the most hated fight in WotLK, AL'akir is the most hated fight in Cata. Z axis. <----