Why remove the trailer scenes?

[Fortigurn]

It was a sneak peak on the content in development, what kind of pretension do you have regarding something you were granted to see, not promised?

When the developers show you a video purporting to be what the game 'is shaping up to become', it's reasonable to interpret this as an indication of what the game 'is shaping up to become'. But the video does not show what the game actually became.