Every time Damien returned from a long journey, he would be a different person than he was when he left. He had a habit of growing when nobody else was around, so the people around him were forced to get used to never actually experiencing his growth.
This time, however, he was not the one who left for a long time. He only spent a few months away, but for everyone else, it had been ten years.
They grew and changed with the time, and he was the one who had to realize what it felt like to be in their position. When he returned to the palace, it was in an especially large outroar.
After all, the phenomenon Damien caused was a huge deal. To him, it was nothing more than subtle provocation, but others didn't see it the same way.
Even Supreme Gods couldn't cause that kind of widespread damage to kill every single foreign being in the world. At most, they could go from zone to zone and individually take care of each one within only a few seconds.