I'm afraid the programmers are too accustomed to having their efforts made to look ridiculous by the playerbase and they sometimes overcompensate. My own group was owned by these oozes, earlier.
Turbine, you guys need to do something to defray the amount of frustration already accumulating in Reaver's Refuge that had already existed because of the nature of the Slot Machine reward offered in these quests.
You had enough new material without being excessive in your nerfs to characters in addition to your buffs of the mobs.