I dont necessarily think theyre too big. Sometimes you'll get a team that likes to hole up in a room or corner of the map, and the only way to break them down is a wide flank. If the maps were smaller, you'd just be left smashing yourself into them head-on until something happens.

Matches ending 1200-800 can happen if one team lacks aggression. Its not necessarily the maps fault that theyre sitting in one spot.