DISCLAIMER: This is not a problem with EB specifically, but I guess its the most popular mod for MTW2 I play that has this problem.
Anyway, Am I the only one who gets exhausted from retraining micro? I swear sometimes I notice that about 30-50% of gameplay I do is just retraining and its logistics, it always reaches a tedium where I downright try to find ways to avoid battles or feel anxiety over a battle(especially battles with smaller ai armies!!!It feels like a huge waste) cause it will ruin my units and I have to retrain all these units all over again. The reason that is tedious is cause so many units in your faction can only be retrained in one or two regions.
Now someone will say that is realistic, well to me its only partially realistic, cause I really doubt that let's say a Ptolomey general in Greece will send an entire unit of Nubians all the way back to Nubia just so they can get 3 guys back, would it rather make sense that he gets his units replenished in his closest major outpost, you Nubians come to them. Ofc I realize its hard to apply realism to rigid unit system in tw, but still.
So I do not know if this is possible in mtw2, but to have buildings that only serve to retrain units, but not to recruit new ones? It feels like the best of both worlds and most sensible option to me.