The Washington Post said "Kislyak reportedly was taken aback by the idea of having an American use Russian communications equipment at one of its facilities because it could have involved security risks for both Americans and Russians." Perhaps you should consume a more varied diet of media sources, not just the ones you agree with.
As for what I don't realize, I prefer to point out what Trump lovers don't realize is a sobering reminder that you can fool too many people too much of the time.