LOL! I'll have to rent Clerks to watch that.
However, major defense projects like that will likely use local labor. The Empire must have been orbiting Endor for some reason. Why? They were using Ewoks for the contracting jobs - Ewok electricians, Ewok plumbers, Ewok zero-gravity welders. Thus only Ewoks were killed, and they were so annoying that I really don't mind. Further research shows that Ewoks were likely nearly wiped out as a species in the few months following Return of the Jedi.
See Endor Holocaust for an explanation.
The Endor Holocaust explanation is convincing. That must have dampened the celebration at the end of Return of the Jedi quite a bit.