Maybe. But now I can't get it out of my head -- is it true that the smallest box contains the smallest laptops in general?
It raises even more (admittedly pointless) questions, like "Is that true for Apple laptops, or all laptops? I bet Dell packs their tiny laptops with a bunch of peripherals or padding. A larger box might get sold more frequently."
And even for Apple, are the boxes physically smaller between different models? I unpacked an M1 MBP the other day and was surprised how large the box was compared to the laptop. I think there's a 13 inch and a 15 inch, and it almost seemed like the box was designed for the 15 inch.
Hmm... This calls for an empirical study. Too bad I don't live across the street from an Apple store anymore, or I'd just go look.
But "How could any of this possibly matter to a CPU designer?" won't be so easily resolved. E.g. even if it's true that the smallest laptop comes in the smallest box, why didn't they ask for the smallest laptop? The salesperson would've been like "Of course, it's right over here." It sounds like he compared the actual sizes of boxes, which is fascinating.