I've said it before, but my friend's mom retired on SS and $150,000. She's very frugal and lives in India for about half the year, Denmark (where she was born and has family) for about three months and back in states for another three. She does what she loves, studies spiritualism with some guru in India. She's pretty happy most of the time.
But that article seems to be encouraging people to count on being able to retire on SS and small pension and a smidgen of money in the bank. My friend's mom didn't have a choice, well she did but you know what I mean. She ran a healthful store, raised her boys and never made much money. I wouldn't plan it that way. Besides, the plan outlined in the article means your going to retire at 67 minimum to get full SS. Who wants to wait till their 67 and then live a spartan life? That's not a plan, that a last resort.