I have to question if dungeons *need* to be roulette content to be spammed over and over again, though. Think, why do you want to get in and get out? For your EXP/tomes? But, why do you need that EXP and tomestones? To gear and level up a job to use in higher and higher content, right? But what's even the point if you're not going to be playing harder and deeper content? Even savages after a point don't need max tomes once you learn a fight and get down your rotation.
I think it's an utter waste of a content slot for dungeons to be forced to be 10-15 minute aoe spam/striking dummy games. A common response I always read when someone proposes complexifying dungeons is "I don't want to have to do this the nth time when I just want to finish my roulette for my exp/tokens". But, this response barely considers the idea beyond an initial glance. Wouldn't exp/tomes be scaled up if the content had a higher average required time? Wouldn't potential optional paths also give a bonus for EXP/tokens? Shouldn't the massive work in art assets, concepts, music, etc. be put to deeper use rather than a mindless piece of content you'll enjoy once and then autopilot the rest of the time . . ?
It *is* really disappointing to me to look at areas with amazing designs, art, and thematic/vibes such as St. Morcianne's Arbotoreum, and see that in game it is only a straightforwards path of 2 sets of mob packs and boss x3. In that way, virtually all of dungeons can only truly be enjoyed once before they turn into 15 minute button grinders.
And at the same time, dungeons need to not be the content to be spammed for leveling.
Either by scaling up the EXP per run ratio, or by creating a new niche of content for small groups to do. In fact, wasn't FFXIV originally meant to be a game where you do quests to level up? A rework of quest exp/levequests could be in order...
anyways, point is, there's no point in taking a break if the content in of itself isn't interesting/new iterations of the content will be the same.
Oh, and I'm interested to hear what you mean by this/hear some examples. I haven't played any WoW mythics, but that sounds like a rather bold claim.