OK, I come from a Wesleyan/holiness tradition, with a strong emphasis on holy living and holiness. But I see this as a healthy corrective to the common checklist mentality about holiness. And if you read Wesley, he always is stressing that it is God living through you that does the living. It is a gift.
Even so, though, I'm wondering if they aren't creating too strong a binary here. Or perhaps not allowing for a development of the idea throughout the course of scripture?