I think they wanted to pretty much confirm that everyone on the source has shards of themselves on the other reflections. Luq Beqq went out out of her way to say that the Scions on the first had denser souls compared to the people on the first. I don't know if it's his soul or not but we weren't even able to recognize Ardbert was our soul shard until it was flat out pointed out by Hythlodaeus. So *shrugs*.