While to me the game feels finished 'gameplay'-wise (that is physics, planets, flying, docking etc.), it feels extreeeeeeeeeemely barebones content wise. Yes, I know there's a looot of starsystems, but if they all have the same 'random interdictions', the same 4 missions on the bulletin board etc., I'll be burned out in less than 5 hours.
Really hope they continue on making the world feel more alive (which I know they have plans of). That's why I have a different opinion than you, and actually hope they take more time!
I've already spent enough hours to get a Cobra, and I've only scratched the trading surface so far. I haven't tried assassination, military or bounty hunting missions yet (although I've done some shooting in pre-beta). More content is on it's way and I'm not worried. Even now there is so much to explore, that I haven't got bored of that either. As soon as I get a few extra weapons, I'll start going through the systems for unidentified signals.