I guess that's a possibility. This just made me a imagine a review like: "That last fight scene was so realistic, and the tension between the characters could be felt in the air. I liked every single one of them, and even the villains were so human. The music that accompanied the scene was perfect to help convey the message of the story, and I feel like my view of the world has changed because of this work... 4/10, wouldn't read again"
Though if it really got to that point, reviews would probably be different.
Well, we can't test that, so it's kind of a moot point
Back to moeges, some people do think some of those serve for a "healing" purpose after reading some high-quality works.
I don't do that very often,
Another example would be my very first VNs, tsukihime, fsn and aselia, if I remember correctly. They were very good, and I was pleasantly surprised by the quality (which I thought to be common of VNs at the time).
...At that point in time I was already a bibliophile and had read a great many deal of awful books, so it could be that too. I don't think we can test any of this, though. It'd be interesting to get a random newcomer who just started out without ever reading a VN before and making a list of the best VNs out there to check out what he'll think.