...It's relevant for me to use the right pronouns. Beyond that it doesn't matter, you're correct.
It's merely a suggestion. Certainly Nick's friends might ask why he doesn't want to do that.
Of course, Kaito's powers can't purify at all. He can just move things with his mind.
So I guess both of us kind of need an answer.
My proposal was for the souls to either get set to "delay" on rebirth, skipping Soul Society, or sent directly to be reborn (considering there are a couple hundred thousand people born every day, this shouldn't be a huge impact on that) as a human baby somewhere (well, probably as a newly-formed fetal soul, or some such, but that's probably too technical and such).