In this model, it's all about idiosyncrasies: the Voyager record had the Vitruvian Man, this has an astronaut on a sports car and largely-irrelevant sci-fi stories.
Of course, private space probably means the whole timeline comes faster and private associations are soon launching Dostoyevski and Pollock too. Still, this payload is culturally cringeworthy, as much as the sheer engineer accomplishment must be lauded.