Lin Mo's appearance was something both Yao Changying and the Withered Spirit Daoist had been not wishing to happen.
He was the only one other than the Emperors that had made them feel threatened. Having obtained more Soul Fragments, they had not been as worried about the Emperors as they knew that the Withering Dao Energy would be more than enough to tie them down.
The Huiqing Emperor had already been weakened and was stuck purifying it form his body thus wouldn't be able to interfere in time. The Holy Topaz Emperor on the other hand had his hands tied due to the presence of Black Ying Empire right in his backyard.
The force that had once been the hidden dagger of the Holy Topaz Dynasty had now been turned against them.