[Amenadiel was amongst those who left, but instead of going back to his world, he ended up coming back having no idea of the time that passed between the last thing he remembers and now.
The remaining tents help him figure out that it actually hasn't been that long. But if he's back now, and there is no pin showing he's a visitor...
Finding his brother is his first priority, of course, but it shouldn't take him too long to settle in. After all, having been here before helps a lot.]