Trying to unlock all of my level 50 roulette dungeons (have quite a bit to finish, yuck), and the only one I haven't unlocked is Halatali. I know where I'm supposed to pick up the quest (Hugubert in Moh Dhona), but the quest icon doesn't show up over his head. BUT a red locked icon shows up on the map where he's standing. I've looked at a few wikis, and in the comments section someone posted that you have to complete Sunken Temple of Qarn (Hard) first before the Halitali quests unlocks. I had planned on running that one tonight anyways, but is that actually the case? Why wouldn't that be listed as a prerequisite? I have finished The Ultimate Weapon, which is the only listed requirement.

I don't mind digging every once in a while, but it's a bit annoying that it's not spelled out in any way.