Thanks for the info AP.
It seems like the event, especially policy debating, has taken on it's own customs which appear ridiculous to an outsider, but perfectly logical (and perhaps necessary) within the competition itself. In other words, the initial premise, speaking, has become a secondary to content. You just have to do it orally, but nobody really has to understand it because they have a transcript. That keeps it technically a debate I suppose.
It's akin to the blurbs of high-speed, compressed legalese at the end of pharmaceutical advertisements. You just have to state it in order to meet the legal requirement of full disclsure. Whether you can understand it or not is unimportant.