Indeed, the Divine Position is related to the chance at immortality, an object of utmost desire for them, able to help their disciples, friends, and family achieve longevity. However, the Ancestor Celestial Master knew that this Divine Position could not be monopolized by one party, nor could the True Immortals swallow it alone.
"As it concerns longevity, it is essential to give all cultivators a glimmer of hope. Otherwise, it would surely incite an uproarious backlash!" Daoist Xuántiān said in a cold voice.
Indeed, the power of True Immortals and the immortal sects was enough to suppress the whole world, but even so, they could not monopolize it, cutting off the ordinary cultivators' chance at immortality.
Otherwise, even if they had eradicated the Demon Race, the Godsealing Plan would not be successful. It would drive the cultivators of the world into madness, unless True Immortals could suppress all cultivators.