I have no idea pro chto oni gavarili but anyone can intrude onto anyone elses frequencies by pumping more power into their own broadcasts on the same frequency.

Since the west has been taught to accept simplistic explanations from anything that promotes itself as an authority and is taught to accept only the popularly promoted line, also pumped with overwhelming power to drown out any vestige of critical thinking based on fundamental principles
pretty much any propaganda from a malignant state will be effective to a public that wants to ignore reality or discomfort.