The Pentagon is “lifting their skirt” to the Chinese. This is a good way of showing an enemy their capabilities without “announcing” them.
There is no other reason to do all of this disclosure.
There are stories like this out there
https://www.militaryaerospace.com/sensors/article/14186795/hypersonic-drones-missile-defense
But given that the media is supposed to research stories, and the above is out there a google search away, why would the story be presented in outlet after outlet as a strange, spooky, and inexplicable thing with no mention of the Northrop Grumman drones that are a matter of public record?
I think the media got a lot wrong and they are trying to figure out how people confront a lack of information in increasingly vapid news broadcasts.
This is about the most plausible thing I’ve heard yet - all the UFO stuff is for idiots.