Here is the writeup on it.
http://www.dom2minions.com/SemiRandom.shtml
It wouldnt be too tall an order. I pictured it as a way to get people slightly into mapping and modding by getting them to provide single provinces which were theme-designed. If everyone turned in their designs then some would be simple, some involved, some bad, some great. As long as we ended up with enough of them then the randoms would balance things out (well enough for non-competitive play anyway). Nothing ever happened with it.
To me, a starting point was to go thru all of the monsters and make some judgement calls as to commander, unit, pretender, (allowing for multiples of those), and terrain type, now maybe era also. And things like avian, lizard, flying, cat, bear, wolf. Then I could create something like an avian forest populated with flocks of bird types. Or a special wasteland where a special wolf led a pack of regular wolves.