In my opinion, they are both acting like immature twinks. I expected better from Dr. Moore. I have read some of his articles, and I know he is capable of rational commentary, free of Twitter, Youtube, and other tools of adolescent status conflicts.
You do have a point. His page is in my news feed, and I have relied on him as a clearheaded opinion writer about cultural issues from a biblical perspective. Getting in the gutter is not looking good on him, but bringing people there seems to be a skill Trump has perfected.