Why is it important that peoples' intentions are obvious in every piece of writing?
Journalists, anthropologists, and plenty of others strive towards rhetorical neutrality intentionally, and just as someone can be a citizen scientist, someone could also be a citizen journalist or anthropologist.
And furthermore it just isn't any of your business anyhow. What you are talking about is the equivalent of worrying about thoughtcrime. No objective harm was done but you worry that someone secretly holds an opposing viewpoint.