Belkar's plan to get Miko to Fall has some serious flaws in it. Besides the lack of resurrection capabilities, he also neglected to take into account that he's an evil murderer who escaped justice, continually assaulted her and made it clear he intended to fight to his death.
Furthermore, I think Miko's less attractive qualities were told, not shown, until the Inn Scene, and even then she had a point that the Order was largely responsible for the destruction. If you've ever played a real game of D&D, I'm sure the NPCs in your game felt the same way about your PCs.