Symbolism, Imagery, Allegory
We try not to focus on our flaws, but we also know that doing so is human nature—and to this end, we can't help it sometimes. Just ask Kiriel. He sees plenty of people beat themselves up over their actions, whether they are truly bad or not. In fact, he tells us early on that he doesn't see the big deal behind most so-called sins—he thinks it's just part of who people are.
Later, he realizes, "It's the glitches and twists, I thought, that make this universe unique and compelling. Without flaws, there would be no depth, no substance" (23.31). Profound, much? So here's the thing about flaws, then: They aren't bad. They're, if anything, key to making the universe special and meaningful. So just as Kiriel doesn't want to be called a demon, neither does he think flaws should be demonized. It's a twist on how flaws are typically presented, but that's exactly what we'd expect from Kiriel.