There is no impact on this for crypto market if the news is real. I already guessed this would happen because FaceBook have already initiated ban on crypto or ICO advertisements in their social media and Google is the mother of FaceBook, so it is obvious that this steps would be taken.
We have other search engines and I think due to this other search engines would reach to the moon and compete with Google if Google bans crypto related ads.
And there will never be. They are adverts and everyone can decide to change their ad policies anytime any day. Moreover, I am sure the OP is only fond of picking the headlines alone and seeing it as a bad news without even reading its contents.
Google have a huge point on what they are trying to do and considering the level of scam and phishing that has been going on with adverts and a lot of people falling for it, I am solidly behind them but that apparently will have no effect on the cryptocurrency market, so OP can take a chill pill and go to sleep.