The text does not support the claim of universities paying twice for scholarly products. Appearing in the article s abstract, it appears as a self-evident truth. It cannot have paid twice for knowledge produced by other universities, government, industry, etc. In many cases, it does not even pay once. Other sponsors pay for the rest.
Federal agencies reimburse library spending that supports their research.
Universities cannot have paid for what they have not purchased. The book is not relevant to preprints. To my knowledge, journals never replaced it. The claim that LANL is, the primary means of disseminating physics information, is the unsupportable hyperbole of its newspaper source. Considerable experience shows no financial savings in learned communications from the digital revolution and photocopying.