You're attacking a strawman and you know it. Copyright has nothing to do with loaning devices/media to other people, it's about making copies. If he lent her

You're attacking a strawman and you know it. Copyright has nothing to do with loaning devices/media to other people, it's about making copies. If he lent her the book, then there's a good chance she'd buy her own copy if it was something she wanted to own after giving it back. If he put the book online, no one would ever have to buy it again.