You're probably right, it's probably more of a psychological issue than an issue of randomness. Perhaps his users simply trust dice more than they do "atmospheric noise with a certification of randomness across sliding windows", even though minor imperfections in dice (and dug-out pips are more than minor imperfections) will cause them to be much less fair.
That said, it would be really interesting to see the referenced thesis-like papers. Or use high quality Vegas dice for awhile and compare the outcome of those to the purely random data.
That said, it would be really interesting to see the referenced thesis-like papers. Or use high quality Vegas dice for awhile and compare the outcome of those to the purely random data.