I don't really believe it. There is still a bias because "reader trust" depends on what the readers want to read, yes?
That is, most of the readers of Bloomberg, and of the WSJ, are - to use Marxian terms - aligned with the interests of capital owners, and not workers.
Labor is an important part of business, yes?
Yet a look at the Bloomberg home page shows no mention of union or worker rights issues. The word "worker" exists in the headline link "Jaguar's New Evoque Rides to Rescue of UK Workers" but the actual article is titled "Jaguar Land Rover's New Evoque SUV Rides to Rescue of U.K. Plant Amid Brexit Pinch", with no mention of workers.
Why would Bloomberg cover more about the labor aspect of business if its readers don't want to know more about it, or are actively against it?