I never said it was uniform. Just that it looked the same all over the world. The same sorts of religions, the same kinds of political structures. It shouldn't be that weird to contemplate. All agrarian empires looked roughly the same. This is because humans have roughly the same capabilities, the math is really hard to overcome to produce something different. It takes the collective weight of thousands of years to specialize so that one civ can leapfrog another.

RE: good and evil, his specific point was that societies were organized around the broad principles of a grand fight of one set of deities imbued with good traits fighting against another set of deities working against the good ones. Zoroastrianism is notable not because it invented good and evil, but because it was the first stab towards monotheism.