The story has nothing to do with hindering the humans, it has to do with hindering the Serpent who has a pretty potent plan for enslave God's people.
And he does it in the most bizarre and non-sensical of ways, he confuses them! Either way you look at it Sab, if you count all the religions that exist today that are not Judeo-Christian based, then according to your logic, all those people have been enslaved by Satan anyways.
Religious rhetoric is fun. It's like arguing with your friends who's a better super-hero.