I agree, on both accounts. Gwohadda's population was about 18,000 prior to the militia spawns, so 15,000 now. I think that all spawned last turn.
Peasant mobs have really been a joke ever since the current combat system was implemented. They got a little better when we stopped spawning the 10 peasant mobs to face off against 3,000 soldiers. But even still, this incident seemed a bit excessive.