Don't do it. Just because you can, doesn't mean you should. Do you know if they have anywhere near the legal muscle to push back the flood of legal notices if you did this? Assume it survives because it doesn't have a wide open barn door to the public.
You are asking a judge to consider that a book is ok to scrape because it's part of a much larger collection of books, perhaps the biggest and best collection, and therefore it's all OK because at scale means good.