I guess ra'zacs like the hunting and such, but if I remember well, Quimby was already dead when they ate him. Which means that they are fine with eating whatever remains.
This Earth of ours have countless cultures, and some of them has/had the element where the dead was buried into the sky: corpse goes out, birds/other animals come, clean the bones and the bones then were dealt with in a way said culture was okay with it. There were various reasons why do this phenomenon exist; ie. living in a stone desert where wood is a luxury item and digging up the stone is ugh; or various religious reasons.
So picture this: someone gets to go to Alalea, and they find a flourishing human nation, without burial sites, living in symbiosis with lethrblakas and their human-eating babies.











