Yeah, I think we've reached a consensus on the interrogation-then-Charm tactic. Oriana (and Adelise) are obviously more inclined towards mercy than Lydia and Silas, but I think they're both grounded enough to know the chances of them actually being able to let her go are pretty slim. She'll argue for letting her work off her debt if it seems at all reasonable, but won't argue against execution if she isn't going to change her ways.