> So a news organization can be a part-time propagandist then?

Of course.

> In other words they are only producing propaganda when the story contain unflattering details about a subject?

No. They can be producing propaganda when they are pushing a flattering narrative as well. Like what foxnews does with trump.

And it isn't just bloomberg. It's much of the media. As I said, there hasn't been a day without some propaganda about FB the past year. If you doubt it, do as I suggested. Go spend some time on the waybackmachine.