It was reasonable to expect that most of them didn't have the technical capacity to accomplish that in the available timeframe.
> It's like the difference between short selling (legal) and naked short selling (illegal). The reason the latter is illegal is because it involved acting as if you owned something that you didn't actually own.
The reason the latter is illegal is that the person you borrow the stock from is getting paid interest to compensate for the risk you become insolvent before you give it back, but the person you're selling it to isn't.
The author is at no risk of "losing principal" in any analogous way.
> If the IA wanted to treat other libraries' books as its own for the purpose of CDL, they should have (temporarily) acquired a right to do so by entering into an agreement with those libraries.
They were closed and possibly unable to be contacted (you call the phone number of a closed library and there is nobody there to answer it), and it was an unexpected event that was having immediate consequences whereas that kind of negotiating was likely to have taken longer than the duration of the emergency to complete.