I do wonder if the German Airforce Officers knowingly spoke openly on an insecure line. Surmising that the Russians would spout off about it as a coup for their intelligence systems.
Meanwhile the Luftwaffe Officers were able to galvanise the Government into doing something with the Taurus Missiles, show the Government that they are chronically underfunded as they have no secure conference comms - and pointing out the threat that Russia is listening and is a clear and present danger.
As the UK is living rent free in the Russian psyche, then inferring there are members of the Regiment will have Vlad and his pnumpties looking over their shoulders even more.