Arthur's disappearance from the tower caused the matter about him clearing the 22nd level of the First Floor to fade away. No one discussed it, while many considered the man to have perished.
A few people suspected the Divine Rankers of the suppression, but Arthur scoffed at the group, bewildered by the notion. Many would attempt to suppress him in the future, and avoiding such a calamity was Arthur's purpose.
His disappearance was partly due to his achievement.
It caused more chaos than Arthur anticipated, resulting in discussions about a possible, new Divine Ranker. A few tried to approach him on the First Floor, resulting in him running away from the central part of the floor.
However, that was not the main reason for his disappearance.
Exploitation was the reason.