My guess on the reason for this is that a focus on the validity of moral conclusions would inevitably lead to introspection and self questioning. The whole intention of certainty, I would think, is that it is motivated by that very need. If I am correct that moral beliefs are acquired as a result of programming to conform to some group standard as a place of safety from being put down or punished, it makes logical sense that many would not want to wonder out of such a moral pen. Oddly enough, it seems to me too, that it was a need for certainty that could be shared and proven by logic and reason that created for me a state of existential freefall and the collapse of belief in all that I held sacred. Once I had died to the notion of hope that I could provide certainty to any who would listen, especially myself, the death of that need, it seems to me, freed me from such a motivation. I think that condition, one I would call surrender, allowed me to unify concepts that had previously seemed contradictory especially a reliance of rational dualistic thinking. A silencing of the mind, the abandonment of thought as a means of seeing, allowed me to awaken the memories of a more childlike and theretofore dormant state of being. There are no questions where there is no emotional drive to ask. Everything is perfect when there is no need for it has disappeared. Our nightmare, I think, is to dream that life isn't perfect. Imperfection is comparison, thought, fear, the identification with a false self.