This man has the typical gamer mentality.

The years one spends arguing with the kind of people that play table-top RPGers conditions them into not ever conceding even the smallest point-of-fact or even agreeing to disagree. Even arguing about stupid shit on the internet is not as bad, simply because of character-limits inherent to posting.

That said, what I believe the point he's trying to make is that his molding technique is superior to his competitors in that it's higher quality and more able to randomly generate a number. I have no idea why people don't develop a machining process to make the higher polygonal dice, but I can imagine that the tolerance needed to improve on his technique would be absolutely mind-boggling (at least for a stupid person like myself) for an insignificant improvement in the randomness.

But he's... great!