I don't think so. I don't have to worry about that.
Because the profit from the ICO advertising to Google is amazing, if it is not restricted by very strict laws, then I think Google will not give up such a big profit.
Also thinking that, because google gets high profits from acceoting advertisements from ICOs, I guess. Well, if ever they ban ICO advertisements, that won't stop a lot of ICO programs to advertise because there are many other platforms to share their project. What is good about google ads is that it is seen by everyone who sees it, and we know almost everyone opens google.