Yeah, the Ewoks in the final film really have not motive to fight or celebrate. You get the impression that once the Death Star was complete the Imperials all would have left and life would have continued on, totally unaffected. In the first drafts Endor was one of the moons of Coruscant, and was being deforested and harvested for natural resources--which is why Palpatine calls it a "sanctuary moon" in the final film, even though its not. It was supposed to be a sanctuary for the overpopulated Coruscant, which indeed would give the Ewoks a reason to save themselves from the invaders.

And wouldn't it have made sense to make the moon the site for the Jedi Temple?