I think its more like they want to hide the ship internals. The line you don't cross is photographing the ship internals. Right now, the other two ships are in a stage being in blocks and pieces that their internals are going to be seen. That's why the ships are pixeled out in the photos and if the first ship reveals whats inside through its rear elevator, that's pixeled out too. When the other two ships are sufficiently formed and covered by a hull that conceals their internals, then they are allowed to be posted in the Internet.