The fact that they got the southern most people with fairly thick southern accents. In short most of the information is good and the people themselves and their cause is good, but the show presents it almost in a "rednecky" kind of way that I can see people immediately ignoring the "educational" aspects of this show.
I'm just glad there isn't a 3rd party narrator adding more to it...
That and the family bickering and "reality show" feel bugs me.