Our moral intuitions in fact do a very good job of arbitrating and coordinating human action

I strongly agree with this. This is a great explanation for why people have moral intuition, for why it's good (in an informal sense) that they do and unimportant (in that same sense) that it's not very consistent. But I'm not sure how to treat my own flawed moral intuition in light of my larger goal of holding true beliefs.

I don't expect a rational analysis of this issue to be more useful to me than folk morality but I do expect or at least wish for it to be more interesting.

Utilitarian assumptions turn out to be much more incoherent than human folk morality

This is also great.