I think the biggest issue with the USGA and setups is not letting the local talent run the show. Anytime that the course has gotten weird or too hard it's always because the USGA decided they needed to do something. At Shinny they wouldn't let them run full night cycles so the greens dried out too much, at Chambers they killed the fescue because the USGA doesn't normally manage fescue, and so on a so forth.
All of these key errors can all be traced back to not listening to the guy on the ground every day. I think that the USGA could learn a lot from the R&A's success at working with the teams on the ground to get the best product each year. So no I don't think the US Open is too hard I think its fine, they just need to engage the local talent more to reduce the risk of it getting away from them. [size=78%] [/size]