Like those goat lambs born from beast mothers, and the beast sons transformed by the lord of Xun Country, the form of the Devil Emperor of Taishu is not something that can be forged in one go.
Indeed, the current environment is still far from sufficient. Although it's said Taishu has opened the heavens with the virtual moon shining bright, neither the quantity of sinister energy nor the Taifu's understanding of the Taishu path can achieve instantaneous demonic elevation.
The entity below can only be considered the Devil Emperor infant, which still requires a process of constructing flesh and blood, growing in strength, and ultimately surpassing its limits.