Keep in mind the government pumps tens of thousands of enlisted through military intelligence analyst programs every year. These people are trained to sit in a cubicle for 8 hours a day reading mostly garbage and making objective summaries.

So a lot of highly trained intelligence analysts hit the market every year (I personally know about half a dozen). It's just going to be natural that some of the more experienced intelligence analysts are going to be sought out for these content moderation positions, especially now that foreign and nation-state actors are present.

I am pretty skeptical more of the more "deep-state"/"thought-police" concerns. Obviously these people are going to be biased towards collecting intelligence and collaborating with the government. But the CIA would almost certainly rather keep any media manipulation campaigns clandestine and in-house rather than trust former analysts to do their bidding.