I don't think the article is arguing that it's just luck, just that luck plays a huge role.
But also, and more importantly, the article seems to be arguing that these success stories are mostly unhelpful. If you do all that Steve Jobs did, it's likely you won't be even remotely successful as he was. "Stay hungry, stay foolish" is inspirational -- I like the quote -- but also mostly meaningless. Like "follow your passion", "work hard", etc. Yes, we all already know this, and it mostly won't help us become the next Steve Jobs.
I'd agree that these pop, self help seminar success stories are unhelpful, but for different reasons (although they are mentioned in the article): people with these stories rarely mention the not so pretty parts of the story unless those parts serve to "teach a lesson" in line with the narrative in the story, and that successful people tend to ascribe success disproportionately to themselves in a manner very akin to superstition. Most of what they're telling you were the keys to their success will be unhelpful, nevertheless, examining their success with your own mind and not with their words can show you a great deal about what works and what doesn't.
But also, and more importantly, the article seems to be arguing that these success stories are mostly unhelpful. If you do all that Steve Jobs did, it's likely you won't be even remotely successful as he was. "Stay hungry, stay foolish" is inspirational -- I like the quote -- but also mostly meaningless. Like "follow your passion", "work hard", etc. Yes, we all already know this, and it mostly won't help us become the next Steve Jobs.