I think that is the wrong lesson to take away from the video. As the video emphasizes, DoF is a tool that can be used to achieve an intended effect in story telling.
Main thrust of the video is that these days these tools are predominantly being used for convenience of post-production and cost cutting at the expense of immersion and story telling.
Main thrust of the video is that these days these tools are predominantly being used for convenience of post-production and cost cutting at the expense of immersion and story telling.