I'm about to say something that is heretical: It is well past time for SE to take positive steps to finally blunt the influence of speedrunners. It is obvious that putting obstacles like Lantern Oil or making enemies drop small amounts of gil is not enough to discourage ADHD-addled players who want to pull the entire area and just fight bosses. The current Animus system has had a knock-on effect that has made this worse. As a tank, I have no use for this and will not entertain the thought in any dungeon.

One possible solution that comes to mind is something SE will have to swallow hard on: allowing non-boss enemies to drop Mythology tomestones (1 or 2 per kill, maybe) with a chance to drop a random Atma piece. I know the devs want to enforce some kind of rarity but Myth gear is no longer high-tier armor and loosening the grip on the currency can do no harm. I'd also say that no player would be foolish enough to pass up the possibility of 50-100 extra Myths simply for the purpose of cutting 3 minutes off their time.

Another idea would be to award bonus tomestones (Mythology and Soldiery) at the end of the duty, depending on the party's kill ratio. Not only would this give an incentive to not skip enemies, it would give an incentive to clear the room if the bonus for 100% kills is 50% extra Myths and Soldieries.