I normally don't like moaning or other sex sounds either, but I'm playing another AVN right now, and the dev actually managed to match the displayed text to the moans, even the number of them and when they're displayed. It's the first time I've actually appreciated having them in scenes. It's the same moan across different LIs, but there's more than just one sound as well: a moan, a surprised "ooh", and a bunch of others that are pretty well used throughout.
I think if it's done tastefully & skillfully, it can actually add to the experience. I wouldn't have said that before playing that AVN.