Zhou Tian currently possessed powerful strength, ready to fight or flee as he wished, and if he didn't want to stay, those Deities indeed lacked the ability to make him stay. However, if Zhou Tian's power were weakened in the upcoming combat, it might not be so easy for him to leave then.
At present, Zhou Tian did not wish to leave, but if his strength were reduced by the actions of those Deities, and he lost his current power level, escaping from their control naturally wouldn't be so easy anymore. Surely, given the relationship between Zhou Tian and those Deities, if there was an opportunity, it was unlikely they would let him leave alive, no matter what!
Therefore, from a certain perspective, Zhou Tian's current actions did indeed seem rather strange. It was estimated that anyone facing such a situation would unquestionably choose to withdraw. The only ones who would be willing to stay and fight to the death with their enemies were two kinds of people.