I asked a question and by no means created an absolute statement.
That same YouTube channel shows them training this surrender position repeatedly, guess what they will default to when presented with a threat?
Furthermore, they are displaying absolutes and disregarding any situational awareness. If you didn't see the guy walking upto you and you did not properly discrimate him as a threat then you've already put yourself into a bad situation, even more so if all you do is train this surrender method.
This works much better in person and the outcome becomes clear very quickly.