Probably due to the release of the USN videos and the DOD supporting their veracity.
Yeah, because US Government, the Navy, and DOD are scrupulously honest with the American people when it comes to discussing security threats. And they never use that kind of information in misdirection to cover classified programs.
If this is real, and it was real UFOs, they would have dragged that pilot in and told him he was going to be in solitary in Leavenworth he ever discussed it oh, and forced him to sign an NDA. And very last on the list of things they would dude, is notified the American people of something out there that they don’t know what is.