Katze presumedly made a pact of honor with Hajime if it is over in the Gatcha's favor (which it did, miraculously) that he will honor his 'date' with Hajime. At least I think this is what's happened. As for OD's OP henshin seriously I wanna watch that again and again until some crazy ass propmaker brings this out on stage. It is so awesome man... all them LEDs man....
I think personally it has dropped the ball at the last possible moment, regardless of attempt, it was great show overall. I think one of the great problems is that there simply wasn't enough fighting as previous Gatchaman series have explored. (or its ancestors), not much is known why the numbers and the precipice exist, or why JJ chooses them. In fact, I think the only way to tell the story would be to read... about it all... you know, how OD's planet was destroyed, which one of the stars did he come from, etc etc etc... is Berg Katze the only one of his kind?
It leaves many unexplained cliffs, and one may need to wonder if a season 2 is plausible. Production value remains high throughout, something that only Kyo Ani has commanded in the last 5 years, but this one show took the fight to KA's front porch. Beautiful.
I can't help of course, to say the note course of action and the political message in the show is quite profound - leaders only get attacked when they are weak and vulnerable, and even when they make decisions they can be attacked, so there is never a right answer never a right moment, only that when things change, you can change with it, and in the PM's personality at first, the profound human behavior to just turn the other way is reminiscent of many past real life PMs and their policies and many leaders of the world. It is this notion to not expect heroes to save the day, when humans can do so much more if we just sat down and think things through before firing guns.
That. or I am babbling.