To put it simply, Zhou Tian's strength at the time had not yet reached the point where he could ignore everything.
Not to mention other things, if Zhou Tian's performance was too outstanding at that moment, then even if the Divine King he was dealing with was gathering strength to strike at any time and kill the Divine King that Zhou Tian supported, according to his performance, the Divine King would likely attack him after witnessing it.
Even though Zhou Tian had some strength at that time, if he were to face that Divine King head-on, Zhou Tian still felt that his odds of victory would be very slim.
Thus, if there were other choices at that time, Zhou Tian was not inclined to face the Divine King.
