So, having values is moral theism? The choice of words seems suspect.
I'd say "moral atheism" is being used as an idiomatic expression; a set of more than one word with a meaning that's gestalt to its individual components. One of the synonyms for "atheism" is "godlessness", so by analogy "moral atheism" would just mean "morality-lessness".
Here's the new thread for posting quotes, with the usual rules: