Well speed runs are a response by the community because of how easy Yoshi-P has made dungeons. SE did everything except the one that would kill speed runs, make the mobs so strong that pulling more than one back would be a wipe.

But yea, dungeons are boring and rather lazy in design. I think mandating them to 4-man concept hinders the devs ability to make more interesting runs. I would love one of the two dungeons we get to be Full party. Further more I would love to have hidden bosses added like in ARR alpha dungeon and chest drop useful items like tomes, treasure maps, needed crafting items, etc...