On a side note... with the barbarian trait, and especially the clan, getting orcs from village searches is a huge advantage, it can really hurt civs nearby. I can sit there and spend 10gp to be friends and get heaps of orcs that continue to stifle others. Plus with the world spell call the hordes, it increases the effectiveness of this. I suggest a check to see if the civ is at peace with the barbs first and instead of orcs being released maybe the village packs bags and leaves.
The idea was that Barbarian Allies can cause trouble for other civs this way, but maybe 10gp is too cheap or maybe there need to be more bad results. The Horde worldspell seems to be overpowered a bit by this mod, maybe casting it should result in loss of barbarian ally status? Like, you are either with us or against us, sort of thing. Feedback anyone?