Leave canon out of video games...
You don't need it. Revan and the Exile should have been long dead and whatever happened in KotOR and TSL should have remained a mystery. A lot of historical information was destroyed, so no one would have necessarily known whether Revan and the Exile were men, women, heroes or villains in their time. I understand that you need to use canon in books, but not video games. Kind of defeats the purpose of role-playing games in the first place. And yes, I have a pro-dark side bias.