It honestly could be something as simple as that JournoList thing where news personalities go to a private forum and share notes, and likely even create template broadcast scripts and whatnot. I know students do stuff like this. Might not be a top down thing so much as a journalist communication subculture thing.
The whole Bond villain thing is a compelling narrative, but it could be as simple as a private forum/group where newscasters go and say "So, how are you guys covering this? We don't want to axe each others' credibility by presenting differently" and it results in template coverage being a result of journalist interaction, not puppetmasters. Not saying this couldn't go either way, but I'd want to see how Bezos is influencing the news prior to believing, full stop, that he's giving these people marching orders.