You didn't actually, your math was wrong. 100 words a day would not've been enough, you'd need 103.3 recurring. So maybe a little less smug on that one.
But yeah, sure, that's the minimum, but the supposed "challenge" is achieving that. It's like saying "Oh, let's have a challenge where you write five words or more over the course of a month"? It's not a challenge, because it's way, way too easy. The minimum effort is too low, so what's the point of it?