Retreating temporarily when clearly outmatched is not fundamentally wrong.
However, evidently, although the decision made by that ancient powerhouse at the time wasn't wrong, his reaction seemed to have caused a conflict with the treasure. As a result, because the treasure did not approve of the ancient powerhouse's thought process at that time, it ultimately retracted its ability.
Thus, because it disliked its owner's way of thinking, the treasure straightforwardly committed such an act of betrayal against its master.
However, clearly, for Zhou Tian at that time, such a reaction from the treasure was certainly welcomed. After all, with the defense power of the treasure, it wouldn't have been easy for Zhou Tian to kill that ancient powerhouse. Even when the situation began to turn in his favor, Zhou Tian never thought that he could kill his opponent quickly.
