Not at all offensive, though I find that a strange ideology. It's just that Heathenism isn't about good people or bad people. It's just about people, about living, about family, about friendship and about courage. We don't preach about moral imperatives and right vs. wrong, and our gods don't punish us for making mistakes. Our gods don't even get angry at us when we do. No angry god. No sin. No punishment. Just life and our love of it.
Being a heathen is about having the courage to live your life and to accept the consequences. Though, the joys of the worldview we tend to keep to ourselves. Most people can't even imagine a worldview that doesn't include sin, eternal punishment or eternal reward.