The opinion articles are on the same webpage, about the same topics as the “non-opinion” articles. The single indicator of the “opinion” status of these articles (which in the case of all papers mentioned here is just the word “opinion” above thw articles) is easy to miss on a skim.

If you ask me, the same journalism standards should apply to every word on the website of any news outlet that wants to claim to be “unbiased.” Whether a paper without opinion sections would stay in business is a good question of course.