Here's the question: if you were to "cut back on things like eating out at restaurants and taking public transportation to work," would you be able to save 71% of your income? How long would it take you, just in cutting back on lattes and painting your own home rather than hiring a contractor, to buy a 4 bedroom house on 66 acres in Vermont?
I don't really like doing plumbing, but I've replaced quite a few faucets and toilets. Not because I wanted to be "frugal", but because I could not afford to pay someone to do it; if I didn't, it wasn't getting done. I didn't blog about it; I didn't tell everyone, "Hey, lookit me! I'm saving money!" because everyone else I knew was also doing their own plumbing because they were also broke.
(Now, of course, I could pay someone. But that ship's sailed. Besides, it's really hard to find good contractors.)
The McFrugals, according to the article, aren't talking to millenials or anyone else who needs to be frugal; they're talking to the wealthy, saying "all those people you think are whiney, spoiled kids, really are spoiled, whiney kids."