Sure. But from where I sit, it's decidedly more partisan now than it was not too long ago in my lifetime.
The author isn't the first to suggest that big media have switched to subscriber-satisfying content generation in order to stay alive. All can subscribe to bubbles that reinforce the way they want to see the world. All are happy.
In a big city multiple papers with multiple audiences could be financially viable. London and New York worked with Party publications. Even dissenters could afford to publish their own opinions.
In small towns the printer/publisher/editor couldn't afford to upset his local market. Either he had to keep his opinions to himself, hew to the community line, or, if the community was split, give both sides equal time. His decisions affected the amount of bread on his family's table.
That model died with the telegraph, the rise of Reuters/AP/CP and the newspaper chains, the move to big cities and the death of the small towns.
Radio and broadcast TV sped up the process.
The concurrent demise of the churches and social clubs (cause or effect) left Lorne Green and Walter Cronkite in the role of national preachers with congregations that religiously attended every evening. They were more faithful in their observances than ardent protestants, let alone observant Catholics.
And then Time Warner bought the pulpit. They became the Established Church. And just like the Churches of Rome, England, Scotland, Sweden etc al before it, when technology permitted Dissenters found other ways to contact other like-minded individuals.
Time Warner needs to protect the value of its investment, just the way old time preachers, politicians, judges and colonels had to.
Dissenters threaten their profits. Better to denigrate them and try to sideline them through humor, sarcasm, and label them as the mob, the masses, proles, populists, while decrying the successful dissenting preachers as rabble rousers and demagogues.
Eventually the Establishment loses to the Dissenters, learns to work within the new framework and the Dissenters become the new Establishment.
Life is a comedy.