Not sure if it is just that the Dev team is burnt out, or if the tendancy of players to make a straight path to the final boss made them figure 'why bother', but I do feel like they used to try and make each dungeon a bit unique (and I still enjoy doing 50 / leveling roulette for this very reason; even tanking Aurum Vale) but somewhere around the later 2.X patches the dungeons started, and have now fully become, copy-paste with a different wallpaper. I am hoping we see a bit more variety in Stormblood (e.g. changing paths, random sub-bosses, optional 'hard' rooms that give bonus rewards if cleared, etc.), as I'm not sure I can do another 2 years of redundant before they are even released aoe pull tomestone grind 'expert' dungeons.