Take for instance the CCP nuclear policy.
China deliberately has zero nukes ready for launch. Retaliation will ultimately take up to a week as nuclear warheads need to placed on missiles as they are deliberately not attached. This is 100 percent by design giving china time to prevent global obliteration via mistaken retaliation. Additionally
https://en.m.wikipedia.org/wiki/No_first_use
Meanwhile the US has nukes fully ready and armed with deliberate intention to deliver retaliation before enemy nukes even hit their targets. There is no <no first use policy> here.
It's definitely a different and more complicated story for other things outside of war. But Facebook is simply stopping usage related to war.
This makes sense to me. The CCP can't legally be stopped from not using it anyway.