I stopped caring about getting win achievements in Warhammer when CA decided that players need to do domination to get it.
Long victory is we just fine to get the achievement.
I'm aware that you can just cheese with quick and easy end game scenarios but that's basically cheating.
I just want to play a normal campaign and go for Long Victory with new factions. Not a gorrillion year domination campaign. Why did they do it? Cheaters can cheat and they still left the option to cheese end game scenarios. So why cuck the average joe Long Victory enjoyer?