At this point in the unfolding situation, Zhou Tian had already lost most of his utilitarian value to the Deity. Considering everything Zhou Tian had experienced so far, he clearly understood that his meager abilities likely held no appeal for the Deity. Unless there were exceptional circumstances, Deities like Zhou Tian had probably never been taken seriously by the other party.
And if the Deity bore any malice toward him or simply dismissed him outright, then when Zhou Tian lost his usefulness, it's likely he would have already been torn apart by the deceased Gods under no explicit command from the Deity. However, since those deceased Gods hadn't made a move against Zhou Tian, this could only mean that the freed Deity didn't appear to be the kind of person to forget a debt of gratitude.