Well, you could say the same about magical dragons or sorceresses – they attack the Black Dragon, the Dragon King, or the Berserker Bull – two turns and they're done))) A sorceress in one turn! 1000 peasants is great. Every day, they bring 1 (Whirlwinds of War) or 2 (Equi) gold to the treasury. If you have 1000 of them, keep them in the city and that's it, earn money from them). Berserkers are a bit foolish, but sometimes that's a plus – they run towards enemy archers and distract them. And if you were controlling them, you would be tormented by vague doubts, whether to run forward or not)) but here, they simply present you with a fait accompli, and that's it))) Everything has its advantages)).