I think SE sort of shot themselves in the foot when they let you enter the dungeon multiple times in the same time-frame. Hell even two or 3 times a day would be better than just mashing your face against it until you solve the puzzle.

This is one reason why people complained about the dungeons becuase it was instant gratification with no long lasting rewards "Aside the gear". It's not like people spent a week or two formulating strategies to perfect runs, they just ran the dungeon 18 times to see what stuck.