The game is in Alpha of course everyone knows. But I don't think it's suitable just yet for larger scale testing. I'm worried it would burn people out and give too much of a bad impression when many things are disabled or not fully implemented yet.
Big part of the game is Universe expansion that probbly will not happen till the Start of Early Access as well. Building Stations, Trading Posts, Highways, etc.
So I do feel like keeping it a tad smaller for now is in their best interest.
That being said I'm very impressed in the weeks worth of work they did here