Before watching too much of the video, the biggest thing that made Cyberpunk 2077 fail is simple.  It only had 4 years of actual development, for something that needed 7 years of development.  They name dropped the game several years before any actual work started on it.  There's a whole entire array of other issues that made it all so much worse on many layers, all sorts of meddling and mismanagement.  But they were also 3 years short of the development time they should've had to make the game.