I remember being in high school and college 30-something years ago and hearing about how difficult the organic chemistry classes were. They were always difficult, and, I suspect, for good reason. You need to be good at it to to be proficient at things like medicine (mentioned in article) and running an oil refinery or petrochemical plant.
It was always difficult. This professor was not out of line; the students were.
Twenty years after I graduated from the university with several business related degrees, I returned as a student and picked up a degree in psychology.
They were the easiest classes I ever took. One of the easiest was statistics, but the failure and drop rate for psychology majors was over 50%. They were afraid of it.
I went on to study Anatomy & Physiology and neuroscience. Far more interesting than tax law and business.
Now I’m getting tired, and losing my intellectual curiosity that motivated me my entire life.
I’m finding that surrender within opens a whole new reality.