USN&WR is somewhat of a joke... some schools have stopped sending them info. Remember, La Tech gamed the system by just getting a lot of alums to give $1 each. And they keep watering down the rankings. I think they're trying to keep the big schools happy.
There's a lot of evidence that the big schools put forth effort to hide any real comparisons that might show them to be underproductive.
One example: a couple of decades back, a UL administrator told me that for every available comparison of performance on exit exams -- GRE, LSAT, MCAT, nursing, architecture, etc. -- UL led the state, surpassing even LSU & Tulane.
I'm guessing the same situation was happening in a number of other states, because within a very few years those comparisons were no longer available. In fact, the testing companies began asking universities not to publish their performance and pass rates.
The same is true with the NSF research numbers. About 3 years ago, the NSF stopped publishing the number of researchers on a campus. When that data is included, the 'inferior' schools like UL can be shown to surpass the supposedly 'superior' schools.