After all, regardless of the circumstances, back then, the Divine King of Light and his cadre of divine kings were not weaklings.
Based on Zhou Tian's strength, overcoming the Light God King was truly not a difficult task, but even though Zhou Tian was somewhat more formidable than the Light God King, he wasn't overwhelmingly superior. At least, at that moment, Zhou Tian's cultivation level had not yet reached the first level of a Divine Emperor, and theoretically speaking, unless Zhou Tian evolved to a certain extent in the Abyss World, it would be almost impossible for him to ascend to Divine Emperor without fully defecting to the Divine Realm.
Given the situation at the time, Zhou Tian's remarkable performance was not due only to his own strength, though it was not weak, but primarily due to the support of the Abyssal Consciousness. If the Abyssal Consciousness hadn't silently aided Zhou Tian, it's likely Zhou Tian wouldn't have been able to perform as extraordinarily.
