>>69278
You've completely misinterpreted the story.
The video depicts a struggle between "good" (normal) Gura and "bad" (Atlantean) Gura. Atlantean Gura is callous, stepping on a flower that Gura skips over. She destroys the ships blocking her progress towards her goal, which turns out to be a door to the unknown, (clear a metaphor to graduation). Gura tries to stop Atlantean Gura, but is defeated and thrown into the depths, where Gura (with the help of her genmates) rediscovers herself and her ambition. She returns to the surface and defeats Atlantean Gura, but at the moment Gura has her at the end of a trident, Atlantean Gura leaps into Gura's arms, and Gura transforms into Atlantean Gura, the two halves are reunited, but with the "bad" side ultimately winning out despite being "defeated". Gura recognizes that both sides had a point all along, and that her destiny was to graduate, and therefore she opens the door and steps through.
It's actually a fascinating, complex and nuanced story that defies trite and simplistic explanations. Initially the violent Gura wins through, well, violence. But even when the normal Gura can best her violently, the defeated aspect still wins by forcing Gura to recognize that this violent aspect and its desires are part of her. They're not simply something that can be cast aside or ignored, let alone villianized, because they're part of her and perhaps the most important part. It's the Hegelian dialectic, not a battle between good and evil where good triumphs, but an intractable struggle that can only be "resolved" (technically, sublated) through reconciliation, "victory" here doesn't mean that "the enemy" is defeated but rather that the participants in the struggle are transformed. It's very rare to see this in modern media, but you might be familiar with it from e.g. Miyazaki movies.