The economist is a magazine where every article is just the author's opinion. It's not like it's a science publication with peer review. I don't know why people take it seriously.
As far as news analysis goes, the Economist isn't perfect, but it's certainly better than most of the stuff out there.
News is mostly a description of factual events that occurred.
What you're talking about is opinion pieces about the news, and yes, those should generally be not taken seriously (at least 90% of them). Especially the hot twitter takes, etc.
It may not be 100% accurate all the time, but it can still give you food for thought.