[skewart]

For one thing, Facebook competes with the NYT for advertising dollars. If Facebook and Instagram are less appealing places to run adds for a company then maybe that company will spend more of its advertising budget on NYT ads instead.

More broadly though, they have an incentive to weaken companies like Facebook and Google, which are effectively gatekeepers for a lot of traffic to NYT articles. Clicking on an article shared on Facebook, or clicking through to an article in a Google search result are very common ways for people to land on the NYT website. Not only is this traffic valuable to the NYT for ad revenue it's also very valuable for selling subscriptions - people are more likely to subscribe if they have been seeing and reading free articles. I think it's safe to assume the people running the NYT are aware of this dependency on search and social media platforms and are eager to do anything they can to minimize it. I have no idea how much bias, if any, actually creeps into reporting - hopefully it's none! But the business incentives are enough to make me approach any article from almost any media company about Google or FB with a dose of healthy skepticism.