I think that is the crucial question. Often we lump together malice with "reckless disregard". The intention to cause harm is very close to the intention to do something that you know or should know is likely to cause harm, and we often treat them the same because there is no real way to prove intent, so otherwise everyone could just say they "meant no harm" and just didn't realize how harmful their actions could be.
I think that a journalist using an AI tool to write an article treads perilously close to that kind of recklessness. It is like a carpenter building a staircase using some kind of weak glue.