When Wong Yung was healing Gwok Jing's injury at Ox Village in LOCH, they were isolated and helpless. They couldn't protect themselves, and several times, they nearly got killed by various enemies.
At one point, the Cheun Jen 7 Disciples all showed up. Why didn't Gwok Jing and Wong Yung call out to them? If the Cheun Jen 7 Disciples knew they were there, they'd have seven good bodyguards who could protect them against anybody...perhaps even a Great.