I think he's right. In college, my CS 2 class was taught by a professor very different than the rest of the teachers there. He wanted all of your programming assignments on paper[1]. Then, you'd get it back with every possible bug marked in your program, and he very rarely missed any[2]. That was the first time in college I thought "I really need to learn how to do that!" I went to a state school, so maybe all you gu…
I've also noticed that peers struggling with implementing solutions usually have an inconsistent language.