I don't know about all this nonsense but I got my boss spherical ice cubes + glasses they look neat and make you look neat and that's about all that matters to me (someone who likes to look neat). She sent me photos last night and loves them. :) Personally, I have my square king ice cubes (as well as just about everyone who got an xmas gift from me this year) and I love them. The only problem is that all my regular drinking glasses are too small, save for my coffee mugs. The classiness is infinitely diminished when drinking rye from a coffee mug. So, cooling or no cooling, math or no math, big square ice cubes and spherical ice cubes just look fucking neat.
I wouldn't have a problem with it if the admen were saying "buy these ice sphere makers because they look slick." It's because they saying something that is factually inaccurate, and consumers at large are being deceived and ultimately dumbed-down as a result. This is just one example; I see this kind of thing all the time. It usually starts with one bit that is true, establishing credibility, then followed by one or more fallacies: "Spheres have less surface area than cubes..." True. "...and are therefore cools your drink faster with less melting!" False and false. Bah! excuse me I need to go chase some kids off my lawn..