Well, duh:

From the article:

The allegiance to the Clintons has always sat uncomfortably beside Media Matters’s ostensible goal of holding media accountable. Any journalist on Twitter knows that even mild criticisms of Clinton would almost instantaneously raise the hackles of some Media Matters staffer, giving the distinct impression that the whole project was about protecting Clinton from unflattering press rather than ensuring journalistic integrity.

Is anyone at all surprised by this? Pretty much, nope:

Maybe don’t put people who call Hillary Clinton a “white power” candidate on the defend Hillary Clinton beat, you know?