The only thing I would think different is that the negative is not "overexposed" until it the high values start to fall off the shoulder and print quality has degraded. So, the dark gray box in the second diagram (nice diagrams by the way) I'd say "more than needed, but still OK exposure" rather than "overexposed."

In fact in large format photography (where high shutter speed is not needed), dense negatives show less dust when printing and in my hands, are preferred.