Every second, more than 11000 link/statuses/photo/etc. are shared on facebook. The idea of a hypothetical group of employees that check this amount of content looking for things to censor is ludicrous.
Facebook's content control is most assuredly automatic: for example, it could be such as that if the number of people that reported that content as inappropriate is more than twice the number of people that liked it, the content is deleted.
From this point of view, this incident leaves me equally outraged, though not towards facebook, but towards humanity in general.