One issue with factual reporting is what facts are getting reported, given that public attention is a very limited resource. People consistently extrapolate from data without knowing if that data is good or bad. So if I show you news with 100 stories of people doing awful things on channel A and 100 stories of people doing awesome things on channel B, both will be factual, but one will have you living more in fear of everyone while the other will inspire you. These are still biases.
One of the least (to the extent possible given the topic) political examples is stranger danger. Kids are safer than ever before, but due to the way stories are reported when bad things do happen to kids, parents are less trust of strangers than ever before (and this is despite the evidence it isn't the strangers who are the risk to kids). The sum total experience that media provides now leads to parents being far more fearful and restrictive of their children than past generations, all without needing to tell any lies.
If all the police reports and research into stranger danger being a false narrative can't combat it, how will ideas with far less evidence to the contrary be countered? Should parents trust the news when it comes to the topic of stranger danger?