It doesn't really support the theory that billionaires create jobs...
On a more serious note, this was clearly anti-union. But there is some truth to the claims about profitability. I don't know if DNAinfo was profitable or not, but I'm not surprised their margins were thin. There are huge differences in tech adoption in publishing. A site like the Washington Post with a strong tech influence (i.e. bezos money) has an incredibly advanced ad tech stack and optimize the programmatic advertising market. They probably have complex models that price their ads based on historical data and user information, and they've begun to productize their CMS. Whereas publishers that rely on direct sales with brands struggle to stay afloat and without a decent-sized dev team, profitability can be a distant dream.