You are completely ignoring the fact that you can see the video is dubbed over. You can see that it's fake. You dont even know if that video is from china.I have been to many big cities, NYC, London, Chicago, LA, Houston, etc. But none of those cities has 12 million people.
I have also been to Taipei, and Hong Kong and it is wall to wall people. So for me to see pictures of streets that are empty in the middle of the day in a Chinese city of 12 million , that to me instantly says something is wrong.
I get it if people have not been to Asia or China, but for those who have been these pictures are unimaginable.