Have you ever borrowed a digital book? It's for a limited period of time usually a couple weeks, in an app of some sort. That's what they did, that's CDL.

They temporarily removed waitlists which did allow more people to borrow a title than they had licenses, as physical libraries closed and as schools tried to get online. It was an unprecedented time. They had the support of major libraries. They stopped early when they got sued.

The lawsuit should be dropped.