^^^ The problem with your thinking is outer space. The camera distinctly shows outer space. If the earth were flat in any way that
notbatman and his colleagues suggest, you wouldn't see space. All you would see is the white ice and a dome touching down. At worst you would see a haze off in all directions because of the perspective and atmospheric distortions that FE people talk about. But the video shows a distinct division between Earth and space.
If the earth was in any way flat in the video, it would have to be pizza-flat... at best a disk in space. And the camera would have to be directly over the center of the disk to keep it from showing as oblong rather than round.
So, the earth might have a weird shape, but it certainly is not flat in the sense the
notbatman suggests. Since the standard shape of things held together by gravity or static electricity in free-fall (as a chunk of not-"glued"-together material in space) tends towards the spherical, probably earth is nearly a globe or something similar.