First, the whole WCS #3 was amazing. I loved watching nearly all of the matches over the three days. And this guy, Sean, was very good. Dear was amazing, creative, fast, talented, smart and good looking. SoulKey was crushed in the finals. The Zerg had no chance.
I think that the final made for bad TV, and that bad TV is bad for eSports. For the sake of the show, its much better to go to a 7th game. Brings more drama. For WCS 3, there was no drama.
Both Football, Baseball and Basketball all use a draft system to reward the bad teams so that they can get better. It levels that playing field. This allows more drama.