To put what I said another way, it emphasizes the wrong things. Nobody cares how many collections of 6 digits something has. 3 digits are what people care about. (Except where they care about 4, or actually vary the number of digit groupings they care about depending on where they appear, but then, this debate has no meaning to them anyhow.)

It's consistent, but it's consistent with something that doesn't match people's usage.

Both systems are roughly equally broken, so either side mocking the other for their number system is a display of parochialism above and beyond the usual levels one would see.