I blame political correctness. Now, unless you are perfectly neutral and say everything precisely to not hurt anyone's feelings and have zero nuance in your thoughts, you cannot even joke about classic novels.
It's a horrible direction to go to because basic liberties are being abridged and individuals are punished for things that do not deserve punishment. You talked about a topic you would talk in your health class in two years? "SUSPENSION YOU NERD GET REK'T"