Leveling quest hubs after 46?

[Meebo]

If you return to the waking sands between 46-50, the NPCs in the side rooms give you quests that return you to place you've already been...with brand new quests involving the local beastman areas.

Thankyou, thankyou, thankyou. Now I hopefully won't have to suffer 2.5 levels of fate/dungeon grinding.