For the demo they were limiting average APM not EAPM. That's how it was able to get such superhuman battle micro: by playing slower than usual before and after so that the average was below the limit.
> These caps, including the agents’ peak APM, are more restrictive than DeepMind’s demonstration matches back in January, and have been applied in consultation with pro players.
No human can maximize target firing before each shot like AlphaStar did. Not a lot of people even talked about it