There are pros and cons to the AI doing things totally randomly.
On one hand, it usually gets it wrong. On the other hand it can surprise us.
Good AI (artificial intelligence) is not good AH (artificially human). Good AI is the intellgent choice. "A straight line between two points" which is too predictable.
Good AH is almost achieved by "random selections filtered thru intelligent choices" but that takes alot of code. Even for ONE of these nations such a set of rules would be huge to do it with any variety for replayability.
The best bet WE will ever see are more designed AIs for each nation being submitted to the SemiRand. Or a really good mod builder creating an AI.
"AI programmers consider it a giggle that to go from AI to AH requires dumping some intelligence in favor of randoms. There must be a comment there about the human race."
For more reading: the Association for the Advancement of Artificial Intelligence
http://www.aaai.org