I think the public voting was a backlash to Stacy being somewhat of a ringer when it comes to dancing while Rice was a pure amateur dancing in this contest. In other words, Rice connected with the television audience for being a former macho football star competing out of his element against Stacy, who was viewed as a trained dancer. Without question, Stacy is a better dancer than Jerry and very few will argue that point.
Hell, I think Drew is a ringer too, but the female vote helped him, but probably hurt Stacy.
Crawdaddy