I absolutely have to differ on this one. This ribbing no doubt has a wrong and right side. The back side of the ribbing looks basically like all purls. The front is beautiful.
If I do what it says in this pattern, I will not have the knit sts of the stockinette stitch on the correct side. It's not just the k1, p1 of the selvage; there's a "purl 9" and "knit 9" to give the stockinette look between the columns of twisted cables.
I'm serious. And it's not the heat.