Not sure I believe that.

You shouldn’t, and in this specific case you don’t have to!

Just wait until it switches to the camera inside the pod itself - the horizon is perfectly flat again. Or look at the footage shot on/near the ground which displays the curvature added by the fisheye lens used for the external shots.

I'm actually open minded to flat earth

Then please join us on flatearthresearch to discuss, explore, and exchange views on the subject!