The Holy Emperor truly left no drop of water unaccounted for.
He did not directly absorb Qiushui Daoren's Dharma body, nor did he care in the slightest for Qiushui Daoren's insights into the Dao of the Five Primordial States within his soul. Instead, he used his own methods to refine a strand of primordial chaos pure qi cultivated by Qiushui Daoren. This way, whether there was a problem with the Daluo Hundiantianjing or Qiushui Daoren had been tampered with in some other way, he could avoid Wang Qi's schemes to the greatest extent possible.
The same went for absorbing the Human Dao. He did not absorb it indiscriminately, but used the god he had seized, Khorne, to slowly strip away and refine the devil curse power circulating within the Human Dao. And he did not personally refine Khorne either. Instead, he used the Holy Infant Sect's Outer Dao Earth Fiend Demon God Protection Method to have Cifu Shengzi Jingfeng Wang refine this god, so he could discard it at any time.
Cifu Shengzi Jingfeng Wang herself surpassed ordinary Mahayana cultivators and was a high-level god capable of contending with ordinary Celestial Immortals. Ordinary people would never possess the resolve to discard such a god.
Thus, every method Wang Qi had laid out in the open was countered by the Holy Emperor.
Unfortunately, it was limited to what was "out in the open."
The Holy Emperor only had a half-baked understanding of Wang Qi's methods. He understood the Devil's Great Curse, but only knew it as one kind of Path Method, and naturally assumed all of Wang Qi's methods were extensions of this divine path. Moreover, he did not know of the most crucial God Plague Curse.
"You are far too greedy, Holy Emperor."
"If you had decisively cast all this