I really don't think that he completely hates it, as several authors have written books that involve Malla, Itchy, and Lumpy. (For instance, "A Forest Apart," which was the supplemental book to "Tatooine Ghost," involved Lumpy going to Coruscant with Chewbacca.) And the holiday special was even referenced in Star Wars: Galaxies, by showing Wookiees in red robes celebrating Life Day..