I also didn't get the manga's description about how it blurs the line between "good and evil". The shiki plainly admitted that they see the humans as nothing but fodder as they pick them off one by one, and the massacre that followed was nothing more than humans defending themselves, their families and their village.
Was kinda hoping the big guy would finish off Sunako, though. We needed more Tatsumi, and I greatly enjoyed Megumi's death.