There's no indication that the temporal maze fluctuates or otherwise changes. But the people imprisoned inside of it are scattered about at various depths and in totally different directions. Some of them don't even seem to be frozen in the middle of walking. How did they get into the maze to be frozen at different spots, sometimes without even seeming to be walking when they froze? And if there were others frozen before, them, why would then continue walking forward as many of them appear to do.