And the Illigers were just something to swing your sword at for two seconds. You'll have to be more clear than just asking for "more mobs" if you're going to turn around and say that they're useless as soon as more mobs are added.
You don't get to play that card. Illagers are vastly more exciting to encounter than parrots. And they were an excellent part of the update. But parrots are absolutely nothing more than atmosphere. No more exciting then the butt load of flowers that were added several updates ago.