To resolve the issue it would be enough for the TAV to have a neutral expression (which it usually has during the game), so as to satisfy everyone, that is: both those who see the TAV as a victim; and those who want a romantic relationship with AAstarion.
To the topic of the scared face. I can't agree with everything. The "kiss" option was added for couple wagering and to have a nice conversation with a conversation partner. Those who see TAB as a victim will not press the "can I kiss you?" button multiple times. They'll hit the "we should break up" button or not have an affair with that character at all if that's how they see the outcome of the relationship. Personally, I think Pacht 6 is a pretty radical innovation. All in all, Larian has fanned the fire between two fandoms - AA and Spaun A - with this Patch 6 instead of offering a bay leaf.