Well, I didn't think that the dialog in ep. 2 was forced. I don't expect people in power to be emotional about what was being decided. Shuga, however, did show a little emotion. The Holy Sage, on the other hand, isn't going to be emotional about anything imo. He's obviously done some dirty dealings before.
I thought that the dialogue was very much essential to explaining the world order.
I think that Gurren Lagann will take the best of season title.