They're implying that the Google brand has such a terrible reputation in terms of privacy that anything touched by it - even if it's just the name - is not trus

They're implying that the Google brand has such a terrible reputation in terms of privacy that anything touched by it - even if it's just the name - is not trustworthy in many people's eyes. And privacy violations can't be reversed, by the time you have tangible evidence it's too late. At this point Google is mainly known as online tracking company which loves to cancel projects, and they put a lot of effort into building this image to a point an observer can get the impression it's not an accident.