Yes, we all see what EA provided us. I have several friends once been core fans of Need for Speed, they bought every games of NFS they can (just consider the fact that in 1990s, the price of NFS5 in China can provide a family with one month of food). But now, they cursed and abandoned the latest NFS.
But the devs are people, not androids, they have family to feed. They have pressure.
I respect the devs because they offer us a good game with quite low budget. But the only reason I spend my money is because I love the topic and how the game shows us that topic. And that's problem: such a space RTS can hardly become a popular game, so the financial pressure is always there, the devs can never polish their products like Blizzard; but the other side of coin is, such an "unfinished" game will surely scare some potential new players, if not many. The circle has already been small, and each potential loss is severe loss.
I'm not defending the devs; I write these just because I'm a firmware developer, and always has the pressure of quality and schedule and cost, and I think I can understand the devs. But, I'm a fan of Sins, I love it, and hope it to become a great game instead of only a good game. So I really hope the devs can persuade their managements and publishers, to give them at least two weeks more for beta testing.
And I read an article somewhere, which says, most game sales income is within the first week of release.