I'm one of those people who is still annoyed about that tiny but in a way significant detail. It makes it seem like Dumbledore doesnt trust Harry. It bothers me, and it always will. If that makes me a crazy HP fan, then so be it.
Student Complaints in Hogwarts (I would like to say that I think math is taught all along. How could these kids make any of their potions if they can't do math? Just my two cents as a Harry Potter nerd.