You think Dario called up Andy Jassy and told him "Hey, we're trying to get Fable banned, so can you please go talk to the government and tell them that they need to ban it"?

Yes and in a year they will ask for a government bailout because of the ban.

He's always talking about how dangerous AI is, how the models he's building could be used for cyber attacks, and how if his company is successful then at least 50% of the white-collar workforce will lose their jobs.

Doesn't seem that unlikely he might say something like that.. Unless he's super-villain evil it sounds like he believes the government needs to do something?