What's the point with that quite lackluster story in Endwalker?

[KageTokage]

It doesn't go away.

There's a weird quirk that you can only see the moon while the Umbral Winds weather is active, which I can't help but find suspicious when the same weather is present on the moon itself as well as in Ultima Thule. It's also only visible from around 7 PM ET to 12 AM, as it suddenly manifests then disappears as quickly within that timeframe.

I'd like to think it's hinting at some metaphysical shenanigans that are going to become relevant moving into the future, but who knows.