Well, briefly testing the military unit hypothesis, while it has an effect on the power graph in Civ1, it apparently has no effect in Civ2.
Tiago's power graph starts at a point roughly equivalent to "All Techs Given." Remember that once you discover Invention, you can no longer get tech advances from the "goody huts." Also, Tiago's map has the resource seed set to 3; very few of the goody huts correspond with the locations of his cities.
And, as I have said elsewhere, his custom map, and therefore his entire game, violate the principles of the game of Civilization, which I find more annoying than the fact that the evidence indicates cheating.