It's a pithy sardonic addition to the chorus of scorn rightly directed at Facebook, rearticulating the consensus opinion that one consequence of their persistent malfeasance and its regular public disclosure is a profound loss of trust, such that genuine mistakes will never be perceived as such; and furthermore, this creates a self-perpetuating cycle in which embarrassing true bugs are interleaved with further documentation of bad faith in such a way that the distinction is not only lost but essentially irrelevant.
If a bug resulted on you being unable to post to Facebook sometimes, or you posting to your friends only what you meant to post to everybody (the setting called "public"), why would the mass media cover it?