Because everyone was used to fighting the normal dungeons, they neglected one fact. The fact was that most of the monsters in a faction dungeon actually belonged to The Sixth Apostle's army.
The greatest uniqueness of an army was not the high combat power but the combination of discipline, organisation and formation. Any group of monsters or players without these three points would, at most, be a mob and not an army.
The first three Eagle Riding Demonic Apes should be fulfilling the roles of a scout. One could tell from looking at how good the first Eagle Riding Demonic Ape was so good at escaping.
In the dungeon's setting, if one of the monsters was not let off, the rest of the Eagle Riding Demonic Apes would come in groups of three. This way, players could clear each stage of the dungeon successfully. However, because they let that one monster back, they attracted the entire army of Eagle Riding Demonic Apes.
