We can complain about how bad the western game in this thread whenever we want too. But unless every western porn developer came to this thread and say : "Hey! All your opinion is very important to us, we are going to more focus on story and writing in the future!"
Otherwise, it is very unlikely that every western porn is going to change the habit. So better solution is that consumer should focus on high quality and well receive western porn games, so that other western porn will follow their success behavior.