What did we learn? That Rossiu is a fool, putting crisis management ahead of addressing the threat. What's more important, appeasing the masses with a scapegoat or saving their lives? Or does he think that his brain will compensate for the lack of humanity's savior?
The last episode was a tell of two episodes. The first half was comic relief and fan service, while the second half was an intense battle, a very cliffhanger moment and a sad end.
Awesome. You see? Good, well promoted shows will do well. Thank God this show didn't get buried on Adult Swim, but instead gets to hook a whole new audience, one which saw the show, realized its awesome, and (gasp!) became NEW fans.