No one wants to listen to a Ted talk in which a successful person attributes his success to luck (although in invoking Cunningham's law I'm sure one exists)
...which begs the question, what is the point of a Ted talk about success stories if they're really just stories of being lucky without admitting that fact?
It's a nice bedtime story, yeah, but people look at this crap for inspiration and guidance. "I want to be like that guy" except nothing in the story can be replicated to recreate the same outcome.