So it begs the question is that bias are, in many instances, just poorly researched journalism. I often think as fans we expect commentators/journalists to know the intimate details of the club we support, like us fans do, but in reality its unlikely and of course that results in false information/narratives being put forward which regularly gets regurgitated in the press.
Case in point, moving away from City, look at the stick Solksjaer has got this season, but arguably they have done pretty well this year, not that you would think it based on the coverage the manager has received.