Good article, and while I agree it's nothing earth shattering to us, it could be a turning point for a person raised in an average house hold where consumer spending is taken for granted. However, for a young 20-something, I think saving 20% of one's take-home pay is pretty impressive (assuming you're supporting yourself and not living with your parents). I remember being on an entry-level salary, and it wasn't easy. Yeah, we saved, but not nearly as much as we do now. By the end of one's 20s, yes, 40-50% is much more do-able.
Yes, 25-year old me would've read this article carefully and would've taken it seriously. My two 20-something children are VERY interested in articles like this.