The video just shows that the AI can perfect attack mechanics - it's still a simple AI. If deepmind was thrown at the game, it could learn to deceive/cheese/micro/drop and really do some serious damage.
My point is that DeepCraft is still gonna be quite a ways off, and is going to involve a lot more than just learning how to micro, cheese, drop, etc. (Which, by the way, would be quite a feat to even develop an AI that can learn these things since StarCraft has such a huge search space)