Does the AI take a video input or is the AI still operating through a direct API into the game? If so, it's a bit like cheating. Pure data access and no visual noise to filter through is a huge advantage for it but still impressive.
In the last match they used a newer interface where the AI had the same restricted viewport as a human and had to decide where to move its camera to both see what's happening and make actions. The player and commentators both noticed that this resulted in more human like play, and the AI seemed less able to micro multiple armies stretching beyond the viewport like it had in earlier matches.
The deepmind people said the restricted viewport did slow down training, but in the end it was able to get to the same skill level as the previous ones in the end.