The theory that they broadcast communication on a band near GPS in order to discourage jamming of their early warning system sounds likely. Flexing the ability to jam GPS is pointless, since it's obvious that any state actor who has military satellites in orbit has considered this option or have the capability already. Therefore, the disruptions must either be regular tests of the capability, or just actual communication. Right?

Why is the video out at the same time as this article?

Also the user posting this article on HN was only created 5 hours ago.

Is the US planning for war with Russia and are manufacturing consent again?

The video did not settle on the jamming of von der Leyen plane on approach to Plovdiv, but AFAIR it was a (likely unintentional) lie.

Never acknowledged by von der Leyen nor by her press secretary because it exposed the lack of basic world knowledge around von der Leyen and her office.