[Well, Ros is a scientist, so of course she'd have that view. Misora isn't, however, and doesn't share this exact sensibility. What she does see quite clearly is that there's little value in debating the point.

She steps away from the sink, but... notably doesn't un-plug it to let the water drain out. Apparently she hasn't quite given up on this yet.]

What do you think the purpose of keeping their souls here is, Madam Lutece? According to what Nishitani-san has learned from this "Emperor," they don't stay here permanently and it seems... strange to think that a soul can have an expiry date, so to speak.