As the article mentions, even in the UK "fair dealing" allows limited sections of copyrighted works to be quoted for review purposes. Dave Gorman mentioned this in Modern Life is Goodish when he was told he wouldn't normally allowed to show a magazine cover, but he could put it up to say "what a dreadful cover" because then it would be fair criticism. (He may not have been entirely serious about not being allowed to show it). "We state that we have a good-faith belief that..." has to be a lawyer's way of saying "I think...". If they were sure, they'd say so.