Some people don't seem to understand how major this is, I'll try to make a different analogy:
Imagine if Warcraft 3 did not allow custom games. Instead, you are forced to play on their ladder system - their maps, their game. No custom maps, no DotA, no 12 player games (ladder caps at 8). This is essentially what IW is pushing for.
Warcraft 3 would have not done nearly as well as it has. And for what cause?







