First, realize, this isn't as simple as "give the content back." While certainly, part of the decision to boost the required level probably came as a part of trying to incentivize the DLC, it is also clearly meant to be a way to keep the prestige mode of the current raid relevant going forward (realize its just going to keep increasing with -every- level increase). Typically, players will not even attempt to play the older content once newer content is available. How many people seriously ran 40 man molten core once Burning Crusade was up? The same would be the case here. If the prestige raid mode stayed at 300, people just wouldn't run it, instead favoring to run the 330 raid lair prestige mode. There would only ever be one "real" raid that people do. Yes, stamp your feet and demand that it isn't fair that content (which I may add, wasn't online at the games launch), but realize its still for the better health of the game. I would rather have an endgame that featured several raids to do, rather than have one "real" raid to do, and several languishing in disuse. I would prefer to not have to convince people to run older content due to lack of incentive. The DLCs are basically the subscription fee of the game. If you don't pay the subscription, you lose access to features (traditionally, it would be all features, but at least here you can do some stuff).