Action timer in combat.

No. The main benefit isn't saving 30 minutes (although that's a plus too), but rather improving the skill level during battles. Most players have learned how to reposition their units, but only a few can actually fight effectively (and I'm not one of them, by the way). That's why ATG will always remain one of the strongest players in history, because no one has reached that level of micro-management since. And he did it (and still does) very quickly, and that's what inspires respect. To come up with a simple action after 25 minutes (and in the process, lull and maximally annoy the opponent) is not at all cool.

p.s. 2Vatya: if you don't understand something, why are you writing? And using words like "shnyaga."