It's strange I understand the logic behind this, and it's a smart thing to do. Yet I still find this utterly horrific. Don't get me wrong I love this Remilia, but making the parent's watch their babies be eaten just really hurts. I guess I would take the children away from the parents telling them that their going to a special yukkuri place that only Kos can go to instead... Although I suppose if he's just trying to make the parents past particularity sweet for the Remilia it might be why he's doing this. I hope you guys understand where I'm coming from at the lest.
Coker don't feel sympathy for them, they don't worth it, they are fodder, and neither are good yukkuris overall, maybe they aren't shitheads, but they weren't exactly nice or anything, just typical average tier trash.
Feel sympathy for yukkuris that truly show that they deserve it, not for any yukkuri that isn't show as a blatlant shithead but neither are show to be a nicehead or averagely nice, an this lot wasn't nice at all, even if they didn't show high tier shithead traits.
And as you said, it's probably to make their taste sweeter.
Besides, if you keep on taking ko's away from them, they'll start demmanding them back or whinning about it, so the charade wouldn't last much, better to make it clear since the first moment, specially because this isn't some sort of factory on which the yukkus are on solitary cubicles or something like that with no way to complain or do anything about their kids being taken way.