Perhaps they would have had more time to actually deal with TSL if they hadn't simply assumed Revan was a LS male instead of writing all the alternatives. You might think that is no work, but you would be wrong. They centered a lot on replayability, perhaps a bit too much, and it shows. They went for too ambicious a project, but they didn't have the time or the manpower to pull it off properly. I don't want K3 to suffer from the same flaws.
My point exactly. BGII basically ignored all of the player's decisions for BG, and went for a set plot, which gave the devs freedom to develop BGII's plot without restricting ties. Also note that in BG you could not get a "darkside" ending, which simplified this task greatly.