I think people were only surprised because we were constantly told he had the job already. I can't remember speaking to anyone who actually wanted him. I didn't want him for a different reason, I didn't think it would be a good thing for him.
Maybe, but I can't see him getting bored, at least for quite a while - he loves it. He may get a bit irked if they don't go up pretty quickly though. He and Harry seem to be a perfect match for each other.