It promotes the existing power structure, which some people think is no bueno.
For example, if you post this:
https://edition.cnn.com/2002/US/01/30/ret.axis.facts/
the bot will say it is a highly accurate source with highly factual reporting so people will tend to believe with certainty that the U.S. should invade Iraq.
Narratives are created by more than just that, including what is reported on, how frequently it is reported, and what is not reported on. See Chomsky’s “Manufacturing Consent” to learn more.