yes, but it doesnt say the couple lived here, nor does it say the prices are in San Pedro. In actuality, the article is an excerpt from a book, and when it was sorta pasted together, they didnt transition that part.
Also, if you own your own home outright, a single person can retire on $1500 a month. You'll live frugally, but it's possible. I suppose the assumption of home ownership is incorporated?