Hmm, I stand corrected. I just received the terminology as a bit bold. But you are of course free to think what you like.
My problem with releasing earlier to Alpha Backers is the very real potential to complete destroy the critical mass needed for the game and thus threaten the success of the whole game.
This danger is not bearable in my opinion and is a much bigger concern than the enjoyment Alpha players could get from the non-game the prototype is now.
I plead to not endanger the future success and enjoyment of the game.
I don't care for any of the argumentation about "payed more ... yada yada" ... I payed more, yes, but in order to make this game a success. Not to gain access to the prototype.
Alpha Test Weekends are an acceptable compromise. They allow a glimpse to the current experience. It's a good gesture for the patience of the fans. Giving full access would only serve to lose those fans as they lose interest by experiencing features (and people) tickle in, instead of a cohesive game experience.
Battlescape, as a game, can only work as a cohesive experience for most people.
This includes a (reasonably) complete game as well as critical mass of players filling servers for this multiplayer game. If either is not present, it won't be perceived as a good game by most people, will not be played and will fail ...