I like this. I think we need in the same way to challenge our interpretation of what is "good". Something is 'good' because God has done it or declared it good. Most of us wouldn't view a modern day Noah's Ark event as "good" or some of the other things in the old testament that God did. But even though our ever changing views of what is good are relative it does not change the absolute that things are good because they are from God.