I agree, but the concepts here are not overly complex when taught separately, and there is, and should be, a very distinct separation between the two.
It's like the constant "what would this make" threads that pop up, in which signal is largely overwhelmed by the noise of people who can't remember whether a super pastel mixed with a spider can make killer bees or not, and are unable to draw out the punnett square to check what they're claiming to be the possible offspring.