I think this borders on "gatekeeping." There are other lodging options in Yosemite Valley which are much less expensive than the Ahwahnee. Yosemite belongs to the American people, and everyone should have a chance to enjoy it, not only those who want to sleep in a tent and cook on a fire. There has been paid lodging in the valley since before Yosemite was a park.
Food and lodging in the valley are expensive. The shuttle bus system is currently a joke. Aramark, Delaware North, and YP&CC (especially in the malaise years 1970-1993) have not always been good stewards, but in spite of that, the park is a national treasure that all should have a chance to enjoy, not just those in the "rock climbing scene" who want to stay at Camp 4 and rough it.
Aramark's contract should be cancelled. It happened at Crater Lake, and the NPS would have justification to do it in Yosemite, but the last two transitions between concessioners was pretty bad; there is good reason for the NPS to be cautious. If there was the capacity for better NPS oversight, the best move would probably be to break up the contract into smaller pieces and have more than one main concessioner. The Ansel Adams Gallery and Yosemite Mountaineering School are already under different contracts and there is precedent from other national parks (for example Glacier).