Yeah I don’t know why they can’t make space travel to work similar to NMS
Because the Creation Engine is a pile of shit stacked on top of another pile of shit known as Gamebryo. The only way it even is able to handle high speed vehicles for the space combat is by having much smaller external cells with absolutely nothing in them.
What they could have done, though, is make the planets fully walkable. For some reason, those are also not seamless. You eventually hit invisible walls in any sector you land at. The engine is very capable of handling that, though. Especially if it’s just empty terrain.