I understand what you mean.
Google spreadsheets is great when you have bigger tournaments, leagues, whatever. But I think this kind of small tournament that goes from "lets do PvP" to finding the winner, all in less than an hour, it's easier and faster to just use our own forum tools.
All you need to do is to copy-paste that code, fill in the names, and the tournament can begin. Anyone can do it because you don't need any other accounts or anything.
Like I said, this is was not supposed to be a big thing like the TRL League. This is supposed to be just fast PvP fun.