I agree. Mauin stream book publishers of hardcover books with a dust jacket, at the very least have the title and author's name also printyed on the case underneath the jacket. Some books are actually printed as wraparound hardback but with a jacket too. Sicne Blurb print wraparound and also do jackets, then why can't they supply both for a book like a REAL publisher.
As someone elsehere has commented, Blurb never reply to any of these suggestions.