We’re not patient enough to wait for her to die off naturally. Plus if we don’t get the tag, we won’t get loot AND even if we did tag, what if she died and her corpse got stuck in the air? We’d not be able to loot and it all would go to waste.
Plus, you know, she’ll probably cause problems or something and who knows when exactly she’ll die. This is a far less compelling reason because Raz herself is a joke and a non canonical threat to begin with so it stands to reason her minions will not be threats either.