Because if the AI decided to build millions of the bastards, how the hell you gonna counter it?
1. The AI, from my experience, don't do a good job at using starbases. As such, I don't expect them to be able to make, or use more than a handful at a time (3-6 tops,... maybe).
2. Starbases don't have any good long term defenses at this time, and I don't recall them getting anything better in the near future. Its probally better to think of them as troop transports on steriods. Terrorstars can blow up stars and have strong defenses, but like troop transports, I expect that ships can be made specifically to hunt them down.
I don't know specifically, but I'd suspect that it's due to the already very near release date, and that it's more about content and less about code changes than past releases have been.
Hmm... I see. You make a valid point. Here I was expecting a release in about 6 months because thats what it was (more or less) last time.
Oh well. Thanks for answering my question.