Was Jared Diamond on track with his theory of "geographic luck"?

Jared Diamond was on track with his theory of geographic luck.  He was on track because he had all of the right details about what makes a place geographically lucky.  Such as the different types of animals and plants it takes to be able to have a successful village.  In the book they talk about how in the prehistoric era, everyone one was a hunter and gatherer.  The roles that men and women were equal in power.  The men would go out and hunt.  The women would gather the plants, berries and other foods.  Making them have equal roles.  As time went on and people started settling down and forming a village the men started farming so the women wouldn’t have to spend all of their time collecting food and gave them a chance to try different things.  This led to the invention of many different things and tools.  This is exactly what Jared Diamond said about how the people of Europe were able to have guns, germs, and steel.