It is certainly a real advantage, but I think the argument is that it's not as interesting as an AI that could win on the strength of better decision-making, or the innovation of novel strategies, etc.
Yes, likely! I wasn't doubting it's possible or even likely. Only that seeing an AI do flawless 1000 APM stalker micro and macroing perfectly, while pretty cool, is not as exciting as seeing an AI use a novel strategy (edit: especially one that a human could theoretically execute)