Unfortunately, I only have two minutes and 30 seconds in this round of questions.
According to Professor Jean-Hugues Roy, whom you were talking about earlier yourself, Facebook's algorithm is quite reliable, and advanced enough that the broadcast could easily have been stopped in seconds.
This may be a bit of a stretch, but doesn't it become an editorial choice, on Facebook's part, to allow slightly offensive images to be broadcast in contexts where no regulations are in place?