Only fools regard this as bad news.
crypto is full of scams and crap that needs weeding out before the legit projects can start to get further recognition and adoption.
we know jack is a big big supporter of BTC so this is also evidence that facebook and google are probably not crypto haters either.
Simply they cant allow scams to advertise there any longer and it is impossible for them to weed out the good from the bad so ban them all is the only way.
Couldn't agree more with you , I always tell people about this. They ban crypto from their advertisement objectively not subjective due it's crypto, due it's Bitcoin! But how nowadays there too much scam service in the name crypto , irresponsible people take it as their personal advantage they are abusing it. Yet people run in panic trying to pull themselves from crypto business , come on guys ! This is not the first time.