Understanding female psychology is actually one of the BEST part of the journey as a seducer.
And once you grasp it, it's also one of the most solid, diverse and flexible foundation for success. Much stronger than memorizing pickup lines and techniques.
Coming back to your comment and the video.
I think it's great that you are studying female mind. Having said that, I believe you would have much better success if you change your meta-frame of interpreting these behaviors. Instead of SEEING THEM AS MANIPULATION try to SEE THEM AS FEMALE WAY OF DOING THINGS.
When she is talking (at your timestamp) about COMMUNICATING TO A GUY THAT SHE IS NOT INTERESTED ANYMORE, you can interpret it two ways:
a) as something sinister/manipulation, calling it ghosting, etc
or
b) as something woman BELIEVE is socially acceptable and even SOCIALLY ADVANCED way of doing things, at minimum IT'S SOMETHING WHICH WORKS FOR WOMEN !!!
You see, the most important thing is to UNDERSTAND THE UNDERLYING MESSAGE (in this case, the message is to communicate to a dude that you are not intereted) and SECONDLY, understand that men and women communicate differently. The second point is also very important, because it will help you TO DEVELOP A MOREE LOVING VIBE towards woman. Understanding is type of love. And if you try to understand her, instead of judging her and calling her names like, manipulation/ghosting, etc, it will help you big time with women.