There is nothing ironic there as banning cryptocurrency advert basically for some reasons which they explained and was reasonable enough is totally different from going against the idea of the future of BTC.

Scammers have been making use of the advert space to influence people into buying into their shitcoin and they have some level of responsibility for their users. It is not like these social media platforms have banned crypto ad completely, as long as you can show you are legal, then you are good to go.