So it dawned on me. They steal the Death Star plans and provide them to the rebel fleet, the imps don't get them back. The place (the only place known to leaders and overseers) where they house the plans is destroyed, (Proby where our X-65 fix is) and they kill all of the leaders, scientists that worked on the Death Star. In fact the place where everyone is working on it is blown up.
So how could that make a 2nd one.............