Nah, you misunderstand Decatur, which is actually part of Atlanta. Decatur disagrees with this notion despite being inside the perimeter, and therefore this is merely one of a number of attempts to be "different" and to distinguish itself as the odd child out-- which it's been trying to do pretty much since being the only town in Georgia to vote against secession during the civil war.

There are even more technological oddities in Decatur that make people want to become Amish, for instance pay parking that requires text messaging to use.

Given that many Americans are completely unaware of what Roe Versus Wade is, who the president is at any given time, or how many justices sit on the supreme court, this result is not terribly shocking. It's easy to pick on Texas but It's sort of silly. All you've discovered is that a more rural state is about 10% off of the mainstream.