Ok, well as an alternative to the other idea, there is a simpler way to achieve a similar result:

Still, they would play all the maps. In this version, the winner is determined by overall score... meaning, you add up the score from each map, combine them, and whichever score is higher is the winner. So, for example, if the score is 3-1 (blood run), 7-2 (lost world), and 3-9 (furious heights), the end result would be 13-12 and player 1 would be the winner. To keep things interesting, you could always put the low-scoring maps in the beginning and the high-scoring maps at the end.

With this system, people have a reason to watch throughout the entire course of the game or vod. There is almost always a chance for the losing player to make a comeback (especially by placing high-scoring maps at the end). Furthermore, the typical system of group-stages, quarterfinals, semifinals, grandfinals, etc. would remain intact.