And I threw my vote in for it. Give people another chance, and you can buy the DLC and keep it as a gift copy if you don't want any funny business from the key deactivating upon release.
What? It's DLC tied to your account, it isn't going to be randomly taken away or deactivated when the game releases.
While it's true that the DLC and other stuff isn't in the game yet, that in no way means it won't be released at launch with the rest of the game.
Edit
Would I be able to enjoy this game if I played it by myself. I saw where a guy was having to have a conversation with himself because he was playing solo
From how I understand it, co-op dialog (i.e. choosing both character's dialog) will only occur if you give your characters no personality during character creation. With a personality, they will choose dialog on their own for the entire game - basically the same as a traditional NPC companion. Without a personality, you're basically role-playing with yourself.
I think it's actually a really unique and innovative idea. The only other game I've seen anything like that in (co-op roleplaying dialog) was Star Wars: The Old Republic, an MMO, and it was terrible compared to what Divinity: Original Sin has demonstrated in its introduction sequence.
One drawback is that most personalities are not going to make it in for launch, so if you want that it may be a while before it's implemented.
Basically, if you enjoy RPGs already then I see no reason why you wouldn't enjoy the diaog implementation in DOS, especially with the personality system. I certainly will.