Origin characters would be fine if they were not your companions, imho. That is the big issue for me, as articulated so well by others in this thread. It creates major narrative dissonance and limits your ability to interact with them in ways that other rpgs allow with companions.
I just feel like they are mooshing too many mechanics together. Singleplayer is being impacted by multiplayer elements. And true rpg’ing with cool companions is being impacted by origin chars. I wish Larian would focus their efforts stead of creating what feels like muddy koolaid.