I largely agree with your assessment. It is also a way to instill compliance through reputation assassination, which is the point of publishing the video.
The woman going crazy in the car, most likely, is not trained in controlling her emotions through situational awareness. It's fairly straight forward to train people to maintain composure under stressful circumstances through training them to become aware of their enviornment and how to interact with it.
People that lose emotional control like this are merely in a dissonant psychological state between their expectation of the world around them and the reality of the world around them.
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