[ Well, it's certainly not compassion that's giving Illumi pause at the statement. No, he seems to be in genuine thought, trying to come up with any reason at all, arbitrary or otherwise, that these creatures shouldn't get speared. ]

Hmm... couldn't we eat them? Oh, then we'd still need to kill them.

[ He's rambling, obviously with little forethought, as he's just throwing ideas at the board. Meanwhile, Illumi watches Vidar kick and throw the critter back down the hole with little sympathy, while also not offering any assistance or advice. This guy is gatekeeping quite fine on his own!! ]

Well, it doesn't really matter that much. [ So long as he doesn't have to pull more weight than necessary. ] You seem equipped to deal with them, in either case.