@bishop tbh, I don't know if they do have more moderators.
They only have like 4 paid employees, so unless they have anonymous volunteers, I doubt they have more than those 4. Maybe 5.
Not 100% sure on that though. It's not an excuse when they can just add automated reporting and probably handle the issues way easier. Then the entire Fediverse would benefit. But nah, they want control of Fedi without the work thats required for that.