Moon is scary because he appears to be genuinely competent. The legislation that he wrote banning binary triggers, bumpstocks, etc. while specifically leaving out normal semi-auto triggers was probably the sharpest piece of gun control legislation I've seen out of Annapolis in years. Maybe ever.
That's because he didn't write it, he just sponsored it.
The good news is, he doesn't seem to hate us as badly as Atterbeary et al, so it's entirely possible he'll be dormant on this issue for the most part.
He will also at least have a meeting with us and talk about an issue, Atterbeary, to my understanding, wouldn't even sit in the same room with any of the 2A groups.