To balance the criticism with some praise, in addition to some of the great things you have mentioned, there are two worthwhile things about the Jocko podcast that are not explicit in your post that I want to highlight.

1) Jocko embodies growth mindset.

2) Much of Jocko's discipline comes because he has trained to become comfortable experiencing discomfort. Once you've done many painful things your fear of them falls and your sense of self-efficacy rises making it easier complete future painful goals.