After Humankind confirmed.

this was an odd choice to me as well

I think this was ment and not a placeholder.I just dont really like the idea of earth being in this setting.

That's the lore pass on tht ech tree we never got. And I suspect we never will!

With everyone complaining about the bugs in this update, the thing that really left me disapointed is the lack of quality. Aplitude games are ususally unbalanced and can be glithcy and unintuitive. But the amount of detail they put into world buidling is pretty substantial. So to see things like this and the typos really puts me off to an otherwise awesome update

The-Cat-o-Nine-Tales wrote:

We’re already working on a patch to address many of the issues you have brought up regarding bugs, balance, and presentation. For example, we are reworking the texture and artwork of the planet Sobra to be closer to the landscape seen in the trailer (we want to avoid any confusion with another famous Home Planet… )

So it was misrepresentation after all.

So this was just some kind of fancy placeholder after all.

The level of QA is bafflingly low since the release of ES2...

Advertising, they have been working on Humankind with a lore that takes place in Earth history so Amplitude Studio with possible suggestion from Sega decided to use the Earth texture (hopefully temporarily) in the DLC as way of subliminally advertising human kind in hopes that more of the masses will purchases thier new game that coming up.

CowFroggers wrote:

Advertising, they have been working on Humankind with a lore that takes place in Earth history so Amplitude Studio with possible suggestion from Sega decided to use the Earth texture (hopefully temporarily) in the DLC as way of subliminally advertising human kind in hopes that more of the masses will purchases thier new game that coming up.

This is pure speculation.

& 

They already updated the texture for Sobra.