I would agree with you except for one thing. As I've repeatedly stated, the box did NOT clearly state that the cable was not included, and the setup instructions strongly implied that it was.
I bought a new car once and it came with a quarter tank of gas. I laughed when another buyer was going completely NUTS on his salesman for his less then full tank. Why do some people want more than they pay for?
Once again, Be Well.....
I am looking right now at the empty box that my new HP AIO came in. On the side, under a list headlined "Contents," it clearly states, in large boldface type with a box around around it for emphasis, "USB cable not included."
Underneath that, it says, "Please purchase separately: USB cable: for best performance, use hp USB cable, hp part no. c6518a".
I do agree that the warning should be larger, though. For what it's worth, when I bought it, the salesman wouldn't let me leave without either buying the necessary cable or swearing on my parents' lives that I had one at home already. He said lots of people come back, sometimes bringing the entire printer in an open box, thinking the cable was left out.