Doctor Phibes
Prince
That is the reason why some of us were saying, before Civ 5 release, that they should go with limited stacks in the game instead of 1upt; because the problems were forseen ahead of time (but instead the few of us got strung up and hung in the middle of town square).
In fact, it was blatantly obvious the AI would not stand up to the hype, because Firaxis left tons of AI bugs in every civ up to date, that they have never fixed. They even introduced bugs that they never fixed into Civ Expansions (that didn't exist before that). They are not a bunch of AI genius' over there.
Limited stacks would have partially solved the huge AI problem that will forever plague Civ 5; hopefully they go that route in Civ 6 so they can keep the tactical part of it, while maintaining sanity in the game.
Crikey. You were playtesting, I take it? Makes you wonder why the companies bother with playtesting when they are just going to go along with whatever mad random thing the latest crackhead on the board said they should do.
There are a number of RL equivalents tho, for example, offhand, the inability of many navies to accept the idea of aeroplanes sinking warships. Still, small, voices that should be listened to...