Objectively? What is "objectively" with respect to God? Does this mean the author spun a theological yarn that includes a god who is subject to a greater moral universe who isn't the final authority in and of himself?
If our moral lacking is something external to God, then God is not the ultimate creator, and cannot be considered the ultimate judge. If moral rules are above God, then that god didn't create them so there has to be a higher god who decided right from wrong. If that god is subject to moral rules, then he is also subject to judgment under them, so there must be a higher judge. Pulling out the word "objective" with respect to God is meaningless if we truly believe in an ultimate creator-God.
Objectively with respect to God means according to His sovereign judgement.