They have their work cut out for them, but not in the way you think. Remember that it's easy for an SC2 AI to beat a human if there are no constraints such as

They have their work cut out for them, but not in the way you think. Remember that it's easy for an SC2 AI to beat a human if there are no constraints such as APM. So if and when the AI wins, the humans are going to complain that the constraints weren't set tightly enough. So the contest is going to devolve into a war over the constraints to use, just like the endless bickering between Protoss Terran and Zerg about balancing the units. The best thing DeepMind will be able to say is that they were able to beat Flash (or whoeever) with only 150 APM. But Flash will complain that it wasnt fair because DeepMind was able to be so efficient with those 150 APM so that really it should be limited to 100. I suppose once the APM cap is well below what humans do, then the humans will have to admit a sort of defeat. Hopefully there will be a ladder running where humans can play against the AIs under development and get a feeling for how they play. Will be really fun & interesting!