That book has both Strossen and Stallman in the list of authors: https://www.wetheweb.org/post/about-the-book
The article in question: https://www.wetheweb.org/post/cancel-we-the-web
The article in question: https://www.wetheweb.org/post/cancel-we-the-web
The only source I could find for that comes from some sketchy book promotion site. Are you sure that Strossen wrote about Stallman? Do you know of a better source?