He had previously fought alongside Sun Wukong against Heaven Soldiers and Generals, swallowing all the Heaven Soldiers and the Demon Clan members with his sleeve. He then repelled Heavenly King Li of the Heavenly Court with his sole strength—a deed that was witnessed by the six Great Saints, the Demons of Flower Fruit Mountain, and had been reported to the Heavenly Court by Taibai Star Lord. He presumed his name was now known throughout the Demon Clan in all four continents.
His reputation grew and before he entered the Heavenly Court, he became even more renowned among the high-ranking Demons -- he wondered if there were still blind ones who would dare to cause trouble at Mount Taiping.
If it involved members of the Demon Clan below the level of the Great Saints, he believed that there should be no issues with Saint Bai He of the Foggy Peak Ridge present.
In short, he was not too worried about Mount Taiping.