Most founders work very hard, often to destructive excess as portrayed in the article. And most startups fail. This suggests that hard work is weakly correlated

Most founders work very hard, often to destructive excess as portrayed in the article. And most startups fail. This suggests that hard work is weakly correlated with startup success. If so, a dearth of examples of successful startups by founders lacking a chronic death-march work ethic doesn't speak at all to whether burnout is a requirement for success.