I think the problem is that there is less often something to be said if you agree. Every now and then you might have something to add that fleshes out the idea or adds additional context, but generally if I totally agree with a comment I just upvote it.
On the other hand, when you disagree with something your response will, by logical necessity, be different from the parent comment.
So if you want to prioritize "adding something novel" there's a logical bias towards comments that disagree since only some percentage of agreement will tick that box.
Otherwise you end up with a bunch of comments that literally or figuratively add up to "this".
No offense meant, because you raise a lot of good points on why Star Trek works as a setting, but I fundamentally disagree with the Star Wars take here. Historically, Star Wars has centered around the Skywalker saga for Personal (George Lucas) and Business (Disney) reasons, not creative ones.
Star Wars offers an excellent setting with a framework to discuss ethics and morality baked directly into the universe. Stories like Knights of the Old Republic have shown that you can get away from the main Saga and still tell an engaging story rooted in the universe that Saga created. Tons of old Legends content didn't tie directly into the original films and were excellent.
Andor has also shown that it's also just that bad writing is what leads to IP burnout. I couldn't finish Book of Boba Fett or Mandalorian season 3, but have watched Andor 3 times.