MSQ

[Arkevorkhat]

Out of those, only Toto-Rak is actually required for the MSQ. The other three (and Halatali, Sunken Temple of Qarn, and Wanderer's Palace, for that matter) have hunt marks in them for Grand Company logs, but the Grand Company membership is never required beyond the first couple of quests to meet Biggs and Wedge and to get your mount license. They're side content.

MSQ =/= Character Progression.
Besides, there's content locked behind GC ranks, housing being a big example, you have to be a Second Lieutenant in order to own property, including apartments and FC rooms, and that requires both AV and DD.