Remember that it took decades before we found out actual details about the Clone Wars, something given reference all the way back in 1977 in the first film. Nor did we have any information about how the Empire came about or the Emperor came to be in power. We also had no detail on Luke's father other than the brief summary that Obi-Wan gave us the same film, and in 1980 no idea what had happened to turn this former hero into the monstrous Darth Vader. It wasn't until many years later that we got answers to those questions.
I wish we never got the answers to those questions as the actual answers were way less cool than the answers I had imagined.
IMO, the fewer official answers the more flexibility I have in my own campaigns.