Facebook is not against Bitcoin but rather intends to avoid the situation of misleading its community members through its paid advertisement. Users of facebook can post crypto and Bitcoin related topics on facebook without any penalty.
I thought the content of the topic is really against bitcoin. Anyway, you are right that Facebook is not against bitcoin rather love bitcoin and support cryptocurrency but due to serious matter of scam and using the name of Facebook to scam and steal others effortless, Facebook made it strictly than before. this is good move to eliminate scammers activities through fb.
All the peoples are wrongly understand the facebook. Because facebook is a one of the social media so company should be directly contact with our project then promote the ICO is right way. But all the promoting our own account so it is a profit for facebook company. This is the main reason to against in crypto promotion but Bitcoin is eco friendly cryptocurrency in entire world.