While i haven’t watched this show (yet), i can say this is an inherently stupid argument. If we met a different species tomorrow it wouldn’t have anything approaching our morals, it’d have it’s own based on it’s biological impulses and it’s history. It isn’t problematic to show that in fiction.

Would i be interested in the story about oshrjad bonebreaker, the orc that learned empathy? Sure, but not every story is about that. A simple antagonistic race, a concept that is not problematic or even odd, could add to many stories where they aren’t the explicit focus.