You are looking at the trees, and missing the forest. The subtle propaganda that the Factbook exists to spread is “the CIA is a neutral and trustworthy gatherer and purveyor of facts”.

They have multiple competing interests. One of their interests is telling the truth to their local military and politicians - getting caught in a lie to their side is the worst that could happen to them.

The world factbook was mostly things that the military or politicians might care about the truth of, and data they need anyway. Mostly what is there were things where there wouldn't be much value in spreading lies - and what value that might have is outweighed by you can fact check everything (with a lot of work) so lies are likely to be caught.

Not saying they are perfect, but this isn't a place where I would expect they would see distorting facts help them.

I remember a few amusing examples which weren't strictly inaccurate but were pretty blatant official lines, like how the US uniquely got to stress a "strong democratic tradition" as its political system, whereas everywhere else in the Western world was just "parliamentary democracy" or "constitutional monarchy" and at least the Cold War era versions had a "Communists" line item which purported to identify how few people in democratic societies were members of Communist parties...