Obama should have been this way two weeks ago. But like I said back then he probably needed a major ass-kicking first.
I actually think in the long term, his failure in the first debate helped him. 1 bad debate and two stellar ones is better than 3 pretty good ones. It lit a fire under him and now he's on his toes. His bad performance, I believe, put him in a position where he pulled out stronger in the second debate, and will continue in the third. Like you said, he needed that kick, and I think his poor first debate performance ultimately helps him.