You are correct of course that the article's mention of lending rates is absurd. Rates are at historical lows.
I'd disagree with your conclusion however, that "there has never been a better time to get a mortgage to buy a home". Interest rates in 2009-2012 were about the same as today, but housing prices had not re-inflated from the financial crash. I bought a house during that period which I sold 2.5 years later (due to a cross-country move) for nearly double what I paid. The same house is now "Zestimated" at another 20% above that price in about 2.5 years.
If incomes had grown at that rate, you wouldn't be wrong. But incomes have not grown at that rate.