It is fairly well-known. I wasn't too surprised when I saw it show up on Reddit recently, but I was disappointed to see it show up here. It's getting harder each day to see any kind of difference between Reddit and Hacker News.
Title is inaccurate; the article doesn't say anything about why, which is what I was interested in. And it's exaggerated anyway. The title should be more like, "Musicians Make Us Weep More Than Computers". The article didn't really say anything that isn't already known.
I don't think it will matter much if all the big media outlets become saturated to a much larger degree with bias, because consumers are no longer at the whims of "pinko media owners".
In the past, if all the physical newspapers sold if your area had a strong bias (that went against yours), you didn't have many options. But on the internet you can easily switch to a different news source. If all the big players just start pumping out far-left propaganda, consumers can and will go elsewhere very easily.
Differing opinions are more easily accessible thanks to the internet, but the internet also allows people to more easily isolate themselves from differing opinions. In a decade, people may be intentionally consuming news from sources that are tailored to their bias. It'll be easier to hide away from news sources that express ideas you disagree with.