Then they advocate plowing those savings into home ownership, as if that itself isn't a consumerist decision. As if there isn't a multi-billion dollar real estate industry pushing the idea of home ownership as "the American dream".
Certainly, it's possible to err too much on the side of irresponsibility, but the author of this blog post has a point. Of all the joys we have in this short existence, "buying a house with cash" seems like a pretty lame one to build your whole life around.