In context of the article, it's the myth of good guys versus bad guys instead of gray characters. That means these characters have moral choices to make. A tige

In context of the article, it's the myth of good guys versus bad guys instead of gray characters. That means these characters have moral choices to make. A tiger doesn't understand morality, while Kylo Ren and does, but chooses to do join/stay on the dark side, which means causing a lot of people harm, which he's fully aware of. We don't hold a tiger morally responsible, while most of the beings on the tv show Supernatural would be, since they're capable of making moral choices. Even the ST Borg understand morality, although they consider it irrelevant. But the Federation would probably hold them responsible, if they had the power to put the Borg Queen on trial, like they ended up doing with the Changeling lead female character from the Dominion.