The Heavenly Punishment Alliance was a crucial part of Su Xin's strategic layout for his power. Although Su Xin's acquisition of the Shifting Spirit and Exchanging Blood Method was accidental, he almost immediately decided how to utilize this extremely sinister Cultivation Technique.
Su Xin was very clear about how the Blood Demon Sect was destroyed. Therefore, his current actions were like walking a tightrope. It could be said that if the Heavenly Punishment Alliance were discovered to have ties to the Blood Demon Sect or to Su Xin before it grew to a certain size, Su Xin could abandon all his current forces and go to the Netherworld, content to be the King of Chujiang.
However, Su Xin would not follow the old path of the Blood Demon Sect. Despite the Sect's immense strength, they did not fall to the hands of the Righteous Sects, but rather to their own.