Aspects of high level tournament play that I had not considered until watching some 2021 & 2022 GSL matches
After watching several 2021 and 2022 GSL matches, I noticed that several players had ice packs/cold packs in there hands between matches. This would be in reaction to pain/swelling/discomfort and/or to prevent pain/swelling/discomfort. High AMP sustained over long gaming/practice sessions and over periods of time can lead to RSIs. A little googling reveals that some high level players have suffered with swelling, CTS, pain, and in at least 1 case surgery was needed to repair the damage sustained.
In addition to pain/swelling/discomfort, players could suffer from fatigue in their hands/wrists/forearms/shoulders. Anyone who has engaged in calisthenics (ex: doing push-ups) has experience the point at which they've reached their limit and must stop and rest, even if only for a few minutes. It is quite possible that players in the various tournaments have run into that sort of wall mid-game. Instead of pausing or stopping the game, players might slow down their AMP which could cost them the match, or resign the match. There are several instances across many matches where a player seems to be in a disadvantageous but survivable position, and resigns the match.
Knowing the taxing nature of competitive RTS play at high levels, it would have been wise for Blizzard to design the game to be a bit less micro intensive. Instead of going for a less micro intensive design, Blizzard devs and management, designed the game around and promoted Archon mode for SC-2. IMO, this was intended to increase sales of the game so that players engage in Archon Mode competitions.