I'm not sure. It could continue if there's enough demand and the creators have more story to tell. But sometimes, external circumstances can also affect the decision.
I don't know exactly who said it. It could have been a protagonist who came to this realization after going through a series of challenges and learning lessons about the futility of revenge.
One reason it stands out is the detailed world-building and the unexpected turns in the plot. Also, the character development is really well done, making you root for the protagonist throughout the story.