The author alludes to that in the article, but I think he needs to play it up more. For many people, this seems the real default, and buying a home is just outward evidence of that. Buying a home is a statement of commitment, that you will be there for at least as long as needed to make up the closing costs and what-have-you. Whether the house is just a byproduct of that attitude, or meant to directly project it, I don't know. But I don't think that everyone should make that sort of commitment, or that we should disproportionately laud those that do.
This is not a critique against people who desire security and stability, this is a critique against the attitude that you must be secure and stable to be worthy. I've seen it make a lot of people around me become depressed, because they simultaneously desire a more interesting life but fear being branded as flighty and irresponsible. Maybe this is their own problem, for being unable to reason their way out of this internal battle, but it is ubiquitous enough that it indicates a more fundamental brokenness.
I also wonder about the reported psychological benefits the author mentions. I wonder how much of this is induced by the belief that home ownership is meant to make you happy. If it doesn't then there is something wrong with you, not with your decision to buy. Not that there aren't happy homeowners, but that there are unhappy ones. It's the same with a lot of defaults; everyone else seems happy enough with them, why aren't you? Perhaps one of the biggest defaults, and the one that drives a lot of this, is the belief that those who follow the defaults are happier deeper than the image they project.