Shang Sikong's suspicion was reasonable.
Crown Prince Ji Gui also saw no issue with the logic, but the crux of the problem was the staggering cost for the Moon Clan to step from Chang'an City onto Earth. They had no choice but to force their way through.
Only Cultivators at the pinnacle of the Golden Core Realm possessed the ability to traverse the starry sky. Any Cultivator below this Boundary who wanted to enter Earth had to use a Teleportation Array. But the Teleportation Array was in Chang'an City, and it was the only Formation capable of connecting the two worlds.
Last time, just to send Gu Jiu'an's trio and Shang Er to set foot on Earth, the Upper Crescent Moon Clan had lost a Supreme Elder. That was a Dao Endowment that was never to be summoned unless the clan faced a crisis threatening its very existence. All just to send four people to Earth.
