I think Google actually stand to lose less than a smaller corporation. The registry will not assign Google to another company in any way that passes any eyeballs without seriously questioning it; if it did get re-assigned then they wouldn't have a problem recovering it. It's not likely to be gone for more than a few seconds before it's noticed and customers who were phished, or whatever, wouldn't be that likely to leave Google because of it.
That said I think appeal to authority is quite useful in this situation.