I might add that someone who can "click" faster than you isnt really going to have much of an advantage, because most people use hotkeys for their groups anyway.

It would be only an issue if in MTW you had buckloads of spare time to sit there and think, now be honest, did you? I certianly didnt in my games of MTW.

Also, you can drag boxes around units far off in the distance, you dont have to click on them.