I understand that there might be two sides to these stories, but I don't get how anybody ever would rely fully on Google for their companies mission critical infrastructure unless it is something like a lemonade stand. If you have a specific contract with Google that manages reliability/availability sufficiently that would be sth. else, but who has that?

It may be that I am out of touch with the other HN users on this one, but "$megacorp does something that on purpose/accidentally blocks my service" doesn't surprise me at all. That the megacorp is legally in the right on their own turf is even less unsurprising and not the point. There is a price to not running your own infrastructure and this price becomes tangible when something like this happens for whatever reason.