Can't see it as a bad news. There are don't much crypto related ads in Google back then but still crypto reached it's steady status today.
Google searches pointing to some crypto related services
e.g exchange names, coin name etc. are not filtered properly so banning ads will be a good mvoe. Some malicious site always on top of that search results creating a clickbait especially for those who are not aware of the system.
And even that news is related to the current bearish market, there are lots of reasons to believed that soon this trend will end.