Most of us are on the same page, it appears. I do believe public opinion (like this thread) and players' input do serve as a sort of governance. I believe the USGA has given this more thought over the decades than any of us do before firing up the keyboard on golf club atlas. And, I think they take their own experience, good and bad into account.
I think they have always been concerned with differentiating themselves and their national championship from the PGA Tour. If the winner shoots 20 under, like they used to do in AZ or Palm Springs, does that tournament really have a unique position? So, yeah, their "brand" is the toughest to win tournament in the world. I think they have backed away from 6" deep rough for the most part, but I wasn't at WF so I cannot comment. And, it may vary by course, a la, playing a short Merion might lead them to deeper rough to compensate.
But, as mentioned, it's tough to perfectly predict Mother Nature when trying to set up on the edge. Of all the things (or the supposed dummies who control those things) I could go on the internet and complain about, US Open course setup isn't that high on my list.