Yes, I got familiar with upper and lower bracket system because of the BSFL competition. It's a good system but I'm not that used to it in "normal" sports so it took me a while to understand it. I didn't refer to that as a complication, but on the thing that you wrote about none of the teams getting eliminated. I don't know, I just hope there won't be more than one DOTA question so it's not a big problem to lose that point.
That part when nobody gets eliminated will be finished today. After that it is normal upper/lower bracket, but I have to make question today so it gives me problems and has no influence on you guys.
There will never be more than one eSport question per round, and I am quite sure that eSports questions in general will not be included in more than half of the rounds. Same goes for any other fringe sport.