"You managed to erase mysticism from the face of Earth. It doesn't necessarily mean you erase supernatural powers we Sorcerers have but also erase religious beliefs in humans. People in the future will think like robots. Emphasis on logic over feelings," replied Saiko.
That explains it, said Narukami inwardly as he understood what was going on. He did want to remove mysticism in the world but what he wanted to remove was the supernatural occurrences in the world.
Anomalies, supernatural powers, and many other factors. He did not mean to erase the beliefs of many religions.
It would be quite dangerous if a lot of people became atheists. Not saying atheists were bad people. Narukami was thinking about the science department.
If all things were logic over feelings. Those crazy scientists might have done a gruesome, inhumane, cruel experiment which the world probably approve.