I'm not presenting my opinion as the absolute truth, but I believe that such a "chance" isn't worth the time spent on the heroes. If we were talking about a game like Hearthstone, where a best-of-three match takes about 30 minutes, then in Heroes, it takes a month, or even two! Due to the excessive time wasted, as well as the low chances of victory for either of the losers, I believe that the double-elimination system is not suitable for Heroes. IMHO, of course.
Playing to two wins in the grand final with a score of 1-0 will only shorten the time. Let the loser try to prove that their loss was just a fluke.
