At the moment, with the new regional buff changes, that negative 50% or so production reduction really is just a joke. You can just build back up in no time if you have enough courtiers and TLs performing various work.
I think there should be a week long cooldown after the last peasant militia disbands from their region or the option itself should only be available once per character so the same ruler can't call upon peasants over and over.
As for militia being added back, they really should just disappear instead of being added back to the region. That way production won't recover as easily since it takes a lot longer to recover from production damage.
