In EE, there a system called "limited dungeon and unlimited dungeon".
Now the limited dungeon version of a dungeon makes it possible for 1 person to complete the whole dungeon 2 times a day. This means that the mobs in there are weak enough for 1 person to handle, even 5 at a time if you have decent enough gear. This kind of dungeon can be done 2 times a day. While the unlimited dungeon is the "normal" version of the dungeon which can only be completed with a party.
Now, this might be too much for LC devs to handle or to come up with and the drop/exp/sp rate for this to be "efficient"( to be worth doing ) would have to be increased, which again brings us to powers that be making this happen.