At the very least there needs to be some way the game as a whole responds to your CUMULATIVE decisions, statements, and roleplaying in a HOLISTIC and CONSISTENT manner, as opposed to Larian's usual: You made decision x at point 1, now y is mentioned at point 2, ignoring if you made decisions a, b, and c at every other point.
Either dialogue, or reactivity, or some background way of keeping track.