i think one thing ff14 could do to help alleviate the 'hallway' feel of dungeons (although i love a lot of the dungeons in the game, ravels straight up homage to secret of mana is OoO) is have some dungeons circle back on themselves or have slight backtracking, like if abania looped in on itself where you had to get to a console that opened all the doors and released the last wave on you as you crossed back into the second room to get to the boss area