The story is consistent with what we've seen before, if you take it at face value as a creation myth. It's the Greek Titanomachy meets Eden meets Babel. Cronus' golden age ends with the Olympians overthrowing the Titans after a long battle and casting them out, with the Titans subsequently endlessly scheming on how to return to their former glory. Just gods being gods. Even the titanic struggle between Light and Dark was drawn out much more emphatically this time around.