I agree, for the most part, with the author. The only sensible reason to buy a home is that you want the security of home ownership. Assuming you can afford the payments even if they increase by 50% there is little risk in the big scheme of things.

The part where he suggests waiting to buy even a starter home if you may want to sell within 10 years is questionable.

Yes the home could lose value but then the upgraded new home would also be cheaper.

Unless really cheap rent is an option, starting sooner in life is rarely a bad idea if, as I said, you are sure you want the security of ownership.