Humans on the Moon weren't a concern for Zheng Yichen at the moment, as the Moon base here possessed strong life-sustaining capabilities and was quite robust. Even without the maintenance of the quadruped extraterrestrials, as long as the humans here took care of it themselves and didn't act recklessly, they could survive for a century or even longer.
Furthermore, Lilith had already obtained the highest operational authority for these Moon bases, allowing her to manage things remotely if needed.
The skies of the Moon were scattered with numerous ships and wrecks, and upon returning to the flagship, the humans there had already divided into many factions, attempting to confront Zheng Yichen to the end.
Zheng Yichen gave them two choices, the first was to return to the Moon and wait to be eventually picked up by people from the Tree Planet, or they could be taken away by him now to be supervised on the Tree Planet for a period of time.