I like your suggestions, but I think inspiration for military needs a rework. It doesn’t really matter when it comes availbale, because the whole mechanic is at fault. It is shared with the healing ability, thus does not work in combat, it takes around 3 seconds to buff a single unit and the duration is way too short. It is never active when it matters. And if it is, it is just about to run out again. 30 secs work for the Kurultei as it buffs everything in the area and is a moible building, but not for a single target cast. The way it is right now it is useless. It’d be fine for age II, if it were available there, but for age III and most importantly age IV it would need a boost.
I suggested that inspiration for military becomes an aura which radius increases with the amount of prelates you have with your army. The prelates would have to be somewhat close together (let’s say every prelate in the range of 5 tiles² counts towards a cumulated aura effect giving inspiration).
Example: One prelate inspires with the radius of 0.5 tile. And every other prelate increases said radius by another 0.5 tiles. 10 prelates would thus inspire in a radius of 5 tiles, 20 prelates in a radius of 10 tiles. That way you would want prelates with your army and you would want to protect them, while the opponent would want to kill them. It’s a high risk/high reward kind of thing.
Or simply make their cast for miliarty units an aoe cast that can be done manually and somewhat from range. That way it could be applied in combat and would not share the autocast with healing.
There is a lot of ways to make inspiration for military viable. The way it is right now needs to change as it is terrible.