I don't think cyclists make awful runners: I think that video looks at world-class cyclists and world-class runners and wonders why they're not world-class in the other activity, not why they're awful. There's a big difference between being "not world-class" and "awful." It depends a lot on your reference group for riding or running. That video starts off with Dan saying that he's a poorer rider than the others but a better runner -- but the others are probably better runners than most males their age.