It is not insane. RL can't just be expected to anticipate every whim. Just ask nicely... Anyway, CC blendshapes are based on Arkit, this is how LiveFace works, so it's not completely clear what the request is for. See: https://manual.reallusion.com/Character_Creator_3/ENU/3/Content/Character_Creator_3/3.4/08_Animation/Creating-Character-with-ARKit-Profile.htm
Yes! 100% needed. It’s insane that it’s not already implemented. So time consuming as it is.