Why does everyone keep talking about Perry as if he's Lamar Jackson? I know he's not Kaaya, but he had 53 carries for 97 yards a senior. He had 95 for 287 as a junior. He's not really a dual threat QB. He's not a statue, but he's not Michael Vick.
Weldon actually had more success running the ball. 174-756 in 2 years and 96-368 his senior year. He was 74-366 as a sophomore.
Based on that alone, Weldon looks to fit into Richt's style more than Perry.
Perry has Dual Threat ability, but you're correct, I wouldn't classify him as such.
His athleticism will pay off big time in that he'll be able to move around in the picket, buy time, and move the launching point, as well as run the ball when needed.