I mentioned this before but if a scene popped up out of nowhere in act 3 where Wyll was saying that he was cool with killing innocent refuges/civilians it would stick out the same way Mizora scene does.
If you've read my comment you know that I think this was foreshadowed / hinted at in the wine sharing conversation. I even provided some youtube links to that conversation. That conversation was in the very first EA release so I've been expecting this for 3 years. "not tonight" is not a hard no. A died in wool monogamist would have given a different response.
Lets not get into this again shall we? I think you'll find that your logic remains flawed no matter how many times you bring this up. Repetition does not make something correct. The game disagreed with you. Stop arguing with the game about how to interpret that scene.
