My biggest problem with small-world syndrome is currently with Star Trek Online. They have tied most of the ancient empires together (the "Conspiracy" bluegills are connected to the "Silent Enemy" beings who are also connected to the the "Schisms" aliens and all who work for the Iconians. And then making some connections between the Dominion and Hur'q.
Everything about those movies had things happen just because, rather than any logical reasoning in following on from ROTJ. It felt like they were happening in a void, the motivations being mostly absent. Even the OT had a bit of political backbone to it to help explain what was going on. It's why I say it feels like the characters don't really know why they're fighting, other than being told to fight.