Earlier quoted context omitted.
Yes, this is really bizarre. I get this kind of policy for some kinds of platforms, but not Drive, Docs, Sheets, Slides, and Forms. Those are my documents, and I should be free to put whatever I want in them. What if I just like to collect and share old conspiracy theory stuff that I know is wrong? For whimsy, historical, whatever purposes...
This policy does not apply to private files. I just want to point out based on your comment that none of what you mentioned matters unless you share the document publicly.
The key word there is "share". Lots of people use the "share with anyone that has the link" for limited sharing.