Ianal, but I believe laws like this usually have a "reasonable expectation" component to them. Imo, ad free means Google isn't injecting their own ads before or during videos, with the exception of ads during live events. I believe they have lived up to that and more with the built in functionality to detect and skip creator ads. I think the explicit writing in the ToS further defends their position, but by itself isn't a definitive defense. So I think the prosecution has to somehow convince a judge that they were actually deceived by the whole package, the marketing and defend against the very clearly stated section in the ToS. That to me is a tall order and I think Google wins.