I haven't worked with Buffalograss, but it sounds interesting.
On the second link you posted, for the Sundancer variety, it shows an area of adaptation across the United Staes that I don't understand. According to the map, Buffalograss will grow across the country from coast to coast, except the far northern tier, and for some reason not the southeast, east of Texas and south of North Carolina. It will grow in Idaho, southern Montana, South Dakota, and southern Minnesota, but not in Wisconsin or the New York City tri-state area. It will do fine in the Washignton D.C area, but not in South Carolina. It's okay in Shreveport, but not Baton Rouge. I can't figure that, it tolerates heat, cold, and high humidity in some areas but not others.