The Gabbits aren't necessarily a spiritual race: they simply may never have claimed to be the Chosen Race, which is certainly what set the Glukkons against the Mudokons aeons ago. It seems strange that they would act totally blazé to its appearance, but then they don't appear to be the most deep-thinking of creatures. Munch is definitely a relatively simple being, though whether that's because of his age, I couldn't say.
Who can say. And just think, a similar discussion is going to crop up with each Oddysee of the Quintology.
