There is a lot on this page about what modern debate is and isn't. It's not supposed to be a mechanism for the exchange of ideas or advancement of understating; it's a game, with rules, and players who optimize performance within those rules. This, here, now, is a forum for the exchange of ideas and the advancement of understanding. Notice that neither of us are hyperventilating while trying to score a victory.
I don't think the specific recording you posted is a fair representation of modern debate. Yes, the video presented modern debate in a terrible, terrible light. But, it was scant seconds of a performance which lasted how long? My point is that the material you posted to back up your opinion over-eggs the pudding to the extent that it undermines you. If you think modern debate is so bad, then an ordinary performance recording would make that point perfectly well, wouldn't it?
The Atlantic article posted somewhere close to our discussion here talks about how black students are challenging the rules within the framework of the competitions themselves. These Towson(sp?) ladies seem to be an example of that. I found it a thought-provoking read which didn't suggest any obvious self-evidently correct solution. What did you think?