namely that the chiss where pretty isolationist up till like 30 years after endor. however it's easy to get around. plenty of info gets lost and forgotten over 3000 years.
I just assume the chiss got burned by the imps. and thats why they retreated into isolation.
Hmm, I see. But yeah in 3000 years a lot can happen. Maybe in that timespan something happened that made them isolate themselves more and more. And the Thrawn trilogy wasn't 30 years after Endor, was it? So we have at least an example of a Chiss that worked with the Empire even though his race mainly kept themselves isolated from the rest.