I'm glad to see that guy go away. After everything he's done, I'd be pissed off if they just forgave him like nothing had happened, especially because he played no part in making the team jump to first.
May he return in a much later arc for his redemption if the author so wishes, but for that to happen, he has to leave!
I'm glad to see other characters that seemed to be playing a larger part in the manga leaving the school as well. Really sells the idea that this school means business and the main character might as well be forced to drop out at some point. And heck, given how his objective is to become a pro, not climb the tower, he could very well end up dropping out and finding another means of realizing his dream!