Hmmh. That is about a different author who said that on Instagram. And reading that Instagram post (which I haven't done before) ... There seems to be more to it. Sharing documents with explicit content with multiple people seems to be the issue. And that'd align with my experience. I've worked on 'normal' Google cloud documents with ~30 to 50 people and nothing ever happened. That could be coincidence but I suppose lots of people do that. Maybe it's really the combination of the two factors.