"The following content may not be eligible for monetization:
...
Tragedy & Conflict
Content that focuses on real world tragedies, including but not limited to depictions of death, casualties, physical injuries, even if the intention is to promote awareness or education. For example, situations like natural disasters, crime, self-harm, medical conditions and terminal illnesses.
Debated Social Issues
Content that is incendiary, inflammatory, demeaning or disparages people, groups, or causes is not eligible for ads. Content that features or promotes attacks on people or groups is generally not eligible for ads, even if in the context of news or awareness purposes.
..."
Facebook has the right to do whatever it wants on its platform, but this will have bad social consequences. Publishers will have no incentive to cover conflicts in war-torn regions, attacks by radical religious groups on minorities in third-world countries, or any news that is not happy and advertiser-friendly under these guidelines.
The only groups that will now have an incentive to cover these issues will be those with a political agenda - including political pages and fake/misleading news outlets.
Terrifying for the future of the discourse in the world :/