They are not saying anything that they wouldnt e normally saying. They are saying not to buy a PC in every commerical, that is the ultimate comeputer wars, PC vs Mac.
It's also a good idea, not bad in any way. I've had people trip over my laptop cord, I've tripped over people's laptop cords. I messed with one kid after he knocked my laptop on the floor, didnt break, that it was broken and he owed me $500. I almost had him about to pay me, so I just told him it wasnt really broken.
I've also had people, tripped over peoples, desktop power cords. Whereas it isnt very practical on a desktop, because the computer itself is tucked away and you really cant walk behind it most of the time, a laptop can be anywhere and frequently has power cords drapped across the middle of the floor. It's most likely geard towards college students, so drunk people dont trip over the cords and destroy their laptop.