icarusancalion

Speaking out now may prevent the same tragedy from occurring to other serious students. As an academic and as an instructor it is his responsibility not only to keep current in his areas of expertise but also to do his best to teach that expertise as outlined in the course description at the level required for that class. If he is failing to do that, then he needs to take the consequences. Speaking out in the course review is the fairest thing you could do. If you say nothing he certainly won't question himself. But by saying something, at least you give him the choice whether to face or ignore his problems. Since he denied you the right of examining your ideas in his class, it behooves you as a student to make doubly sure you do not deny him the same type of opportunity. Of course, it may not be likely that he would undertake to examine his material and teaching methods impartially in light of reasonable complaints, but the school won't require him to make that choice by himself. Most schools base continuation of employment to some degree on measurable achievements in the classroom.

He has undoubtedly done a disservice to the students, but he has committed a more serious infraction (to my mind) in that he has done a disservice to the truth. Half of the idea behind the academic institution is the dissemination of the most accurate and up to date peer-reviewed research -- in other words, the truth as we know it in this moment -- to students and the academic public. By not following through on a rigorous syllabus meeting the objectives as described for that course, he is, in essence, lying to you by omission. If he cannot do his best (or at the very least meet some minimum standard) then he is a danger to the integrity of the institution and has no business teaching there at all.

You may fear doing the right thing for the wrong reasons, but both these reasons stand valid outside of any personal considerations. The decision remains whether or not you're willing to cast your lot with them.