You already gave a counterexample: dynamical modification. In other words, not believing that QM as it currently exists is a final theory. (The specific example you give is just one particular case of this.) The classification scheme you describe assumes that it is. Calling the contrary belief a "pseudo-exception" seems just as unfair to me as summarily saying that the classification scheme you describe is incomplete seems to you.you or vanhees can easily change my mind by presenting a concrete counter-example - just summarily saying this quite standard classification scheme is incomplete is unfair.