I am sure they will find a way to dampen its strength while improving it at the same time. Some ideas: reducing number of neurons, reducing neural network running frequency.
If they are using monte carlo tree search or some other minimax algorithm the standard way to do this is to limit the depth of the search tree. But not sure how they would use MCTS for starcraft. Could be they are using unsupervised learning to figure out how to represent the search nodes
