
Originally Posted by
Lurina
...Kind of murder billions of people?
In the setting of Final Fantasy XIV, and especially in Shadowbringers, a distinction is drawn between the soul and identity, with personhood, and subsequently right to life, invested in the latter as well as the former. As far as we know, no souls are technically destroyed during a rejoining; rather, they are simply reconnected to their corresponding fragment in the Source... But the narrative still presents this as the death of all of that shard's inhabitants. Likewise, despite Ryne being a reincarnation of Minfilia, her whole arc is about her being a distinct person in her own right regardless, with Thancred coming to accept the original's "death" despite her continued existence.
During the post-Qitana Ravel cutscene, Emet-Selch mentions that the Sundering resulted in everyone losing most of their memories prior to the event, leaving only fleeting fragments. In other words, they lost their identities and unique selves as a result.
So by the narratives own internal logic, wasn't Hydaelyn's act of splitting the world just as awful as the rejoining? I've been surprised by how little I've seen this commented on in discussions about the conclusion to the story.