The move from these teo trusted sites is to protect those that are new to cryptoworld that are vulnerable to online scams using crypto to get money from innocent people. This is actually good for everyone. Not all people see the goodness in this act by facebook and google. If this gets implemented, people will only buy bitcoin in legit sellers and websites which means many people will now trust that they will not be scammed. The only reason why some people didnt invest earlier was because of fear of being scammed. If google and facebook will remove this vulnerablility then this will enhance the value of cryptocurrency and might bring the price back up.
Being a ban in facebook and google about cryptocurrency,for me is have a big positive impact in the world of cryptocurrency because for me in this implementation would affect those fake ICO or phishing site to not penetrate or done there own evil ways to deceptive or scamming the asset of those who make a right bussiness in this community or the legit ICO,and also to protect the image of this bitcoin community forum,to still clean from all negative thoughts and spamming.