Because their job is not software development, it's reporting the news and earning from advertising. Sure they have developers working _for_ them but that does

Because their job is not software development, it's reporting the news and earning from advertising. Sure they have developers working _for_ them but that doesn't make them a software development company. When you factor in all the factors related to running a high traffic site these days; different browser versions, web vs. mobile, scaling etc. etc. it's unrealistic to expect them to be able to stay on top of it. Along comes Facebook and Apple News and that's the magic wand: those guys "get" software development so delegate the problem to them