I doubt they still have anywhere near 100 people working on the game, that would be extraordinary considering that no content has been added for nearly a year.
Because features are always implemented in a way that is almost good but ultimately frustrating and then feedback is mostly ignored. If they returned the ability to assign units to formations in the OOB system and remove the randomness there wouldn't be nearly as many complaints about it.
Explains why they have barely any effect on anything
Yeah this is pretty much how it goes every time. I've seen an AI army defend a besieged settlement once on the past couple of patches. A settlement was under siege, nearby a friendly army of a similar size to the besiegers was 'patrolling', I formed an army larger than both and waited close to the besieging army, only then did the friendly army come to the defence of the town. If that friendly army had attacked without my help and combined with the garrison it could have easily defeated the besiegers.
You mean defensive? Idk if the AI uses the war stances.
Exactly. I never see armies defend besieged settlements anymore and barely see armies team up to besiege towns. I can pretty much besiege with impunity because no AI armies will try to stop me, barely have battles against armies.
Yeah I really don't see this happening lol.