I understand doing that in games that involve micromanaging, but not in games like this. I also understand multi-clicking due to pathing issues, but this guy was literally doing it in straight lines. Just drives me nuts seeing them do stuff like this when there is absolutely 0 need other than to stroke your APM-meter on a game that does not really need it. There are mild-medium reaction times need for this type of game, but nowhere near what is needed for games like SC2 as you are relying on a singular unit, not a plethora of units.