I've just looked at the store page.

So you are saying that it works exactly as advertised but you are annoyed that your own assumption that it would not work in earlier versions proved to be false? You find it reprehensible that you are getting more than you expected? Nowhere do I see any references to whether skin shader nodes are used or not. Possibly the artist is doing themselves a disservice by not advertising the product's full functionality, but I fail to see how one can feel ripped off.