Eh, there is some truth to it though. Most people are too stupid to understand the concept of paying off debt early to save on interest. They receive a bill for $x. They pay $x.
Even if it's a credit card with 25% interest, they still see that "minimum payment" amount and just do that.
Ultimately, I see some decent advice there - in that making sacrifices such as not getting new cars, getting income by other means (renting out your place and living in a lower cost of living place), and not going out to eat every week can really help you get off debt much quicker.