Karma
Moody lied to his wife and child and betrayed their trust. On top of that, he took them to Iran during a time of war. What did he expect to happen? Even after Mahtob became an adult, she was still afraid of her father. She also said: "If you abuse a privilege, you lose a privilege. Having a family is a privilege. My Mom saw beyond her own anger to see the suffering of a child. She put my needs ahead of her own."
I'm sorry he never got to see Mahtob again, but that was his own fault. He did this to himself. Once Mahtob became an adult, she still refused to see him, and he could not force her.
"I told you I'd shoot! But, you didn't believe me! Why didn't you believe me?!"