I understand what you mean but I just honestly don't think it'd be that hard to do most of them. Lion would need to be after Apoc Nigh but Naja could be after the mission in ToAU that you fight along side her. Aldo could simply be from after Celestial Nexus, Lehko could've just been after A Nation on the Brink, I could list more but in all honesty I have an idea of where each NPC could've seen enough in the character to be worth a Trust. That said, it's all for naught, even though I've thought of all of these events where they could've made it so we could obtain them via CSs it's already not going to happen. I just don't like that one of my favorite aspects of one of my favorite systems was done so poorly for some of the game's main story NPCs.