After absorbing intense energy from all around him and adding his own will, his realm had already reached the peak of the transcendent stage when the Chaos Pagoda manifested. He did not seem to have been affected much by it, after all, most of the core disciples seemed to have diverged their attention towards it, considering it was visible from all regions.
The means used to set it up seem to go in the direction of the void, as such everyone that looks in that direction could see it regardless of distance and other factors. Even at the moment on the outside, the Psudo-Lords could see it, and this is in a way easy to show that the situation has been around before from their expression, but this is not considered a normal phenomenon.