"Your scores are bimodal!!!!" trying to get the "so what?" Does that say something (e.g ,bad instructor) or does it support something ( idea that 50% of stude

"Your scores are bimodal!!!!" trying to get the "so what?" Does that say something (e.g ,bad instructor) or does it support something ( idea that 50% of students should not even be taking course, for example) Organic Chem class was bimodal which led to dismissal of instructor. Different instructor meant better learning and a different distribution.