I agree with this, but it's worth noting the quote is from a journalist/blogger who was not talking about social media. He was talking about keeping up with a 24 hour news cycle by any means. The problem here isn't specific to social media. It's with overwhelming information flow, the vast majority of which is not actionable to the person consuming it. People come down with a type of awareness FOMO such that they feel like they need to know all things as they happen, even though the information is incomplete, often wrong, misleading, and doesn't impact their everyday real lives in any way.

This is what Andrew Sullivan was getting at. People should worry themselves with information that actually concerns and impacts their real lives. All else is entertainment. If it stops being entertaining and starts being anxiety-inducing, stop consuming it.