It's a hit or miss theory. I doubt it will happen but why not throw it out.
Lunarians were the reason why then version of WG could end the Ancient Kingdom's existence and start ruling over the world, once Lunarians did their duty, they got exterminated one after another because they pose too much threat to WG if they ever rebel.
Lunarians were the reason why then version of WG could end the Ancient Kingdom's existence and start ruling over the world, once Lunarians did their duty, they got exterminated one after another because they pose too much threat to WG if they ever rebel.