He was 83 years old, and a human being, despite how he is regarded by his flock.
She was half his age, and had one eye on the camera when she grabbed his arm, pulled him toward her and almost pulled him over, then refused to let go of her probably painful grip on him. It was an attack by a strong youngish woman on a frail old man. If she had been carrying a knife in her other hand, and was fanatical enough to strike out with it whatever then happened to her, she would have achieved the assassination of a world religious leader and her own lasting place in the history books.
No wonder he wanted to be free of her, and was visibly disturbed by the encounter.
Doubtless she will be traced, and any terrorist links discovered.