Anduril announces Roadrunner, jet-powered VTOL drone

We often hear about "secret" aircraft, chosen to be secret by the govt to not disclose capabilities to potential enemies. However this is clearly disclosing capabilities. Is it just because it's a private company, wouldn't part of their contract with the govt. to keep their new weapons a secret?

They have lawyers to vet releases, no doubt? I don't think this is Palmer live-tweeting from the toilet stall.