I’m not sure that many people associate graphic sex scenes with romance. A sex scene can absolutely be romantic but I don’t think that would constitute vivid depictions of various sexual acts or positions. Has pornography ever been called romantic?
I really don’t see why the game needs it personally. Maybe I’m weird but I like these kinds of games for the appeal of undertaking a grand fantasy adventure, not to explore carnal pleasures. I mean, what are Larian aiming for here…Baldurs Gate: 50 Shades of Greyhawk?
That is exactly the thing - is it romance or is it just sex? Is it just a way to escape harsh reality or a way to make love to the person you care about? Those could be discernable with the help of the well-structured sexual narrative. It is all very raw for now tbh, I guess we'll wait and see.
But honestly, what an adventure it is if there is no sex in it

Let us shed the skin of insecurity here, fantasy games are based on real life, because fantasy is an exaggerated reality. Sex is a part of real life. So not liking it in this game/setting becomes a matter of personal preference, not inappropriateness.