Since he didn't mention you by name, I don't think it was that unprofessional. I think he was just trying to gauge the rest of the class's need for learning objectives. That said, all of my professors post learning objectives and some people use them. I've found them to be unhelpful because they're usually things like "discuss (everything in the lecture)." It's basically code for "know everything." It's great that they're there for students who want/need them though. Do you guys have a team responsible for feedback to the professors/department? At my school, we do and if we ever have suggestions/comments, we just slip an anonymous note into a comment box at the back of our lecture hall and our feedback team picks it up and then discusses it with the professors at regularly scheduled meetings during the block.