However, It is also important to carefully and properly quantify these things and not sensationalize. You've linked a 50+ minute documentary, without comment, that seems to prove that one person hired to curate content can become traumatized by that process. I can't be certain that is what it is about, because I will not waste time watching documentaries (the vast majority of which are outright propaganda or incredibly biased, while pretending to be objective), but still, I've no doubt the general claim is true, since I never claimed or believed otherwise.
But you've not provided meaningful statistical or scientific evidence properly quantifying such harms in general.