This isn't strictly localisation but it is about the game script, and I'm not sure where else to put it.
Back when MSQ roulette cutscenes were player-controlled, there were some dialogue options in the cutscene where Gaius confronts us on the elevator.
"Tell me... for whom do you fight?"
[player gets dialogue options, though "For Eorzea" seems to be the only real choice]
"Hmph! How very glib. And do you believe in Eorzea?"
Ever since the cutscenes were switched to auto-scrolling, we have no opportunity to choose dialogue here, and all our character does is give a silent puzzled look – but Gaius gives the same response as if we had spoken.
At the time I had assumed it would be a temporary measure until the dungeon was redesigned and cutscenes re-edited or made skippable again – but now here we are, the revamp has been carried out and Gaius is still managing to derive "for Eorzea" out of our speechless expression.
If there are no further alterations planned for the dungeon overall, I think this scene really needs to be edited to show our character giving a spoken response to Gaius's question. Not one that we hear or read, of course, but the common animation of silently talking in response to another character.