I'm pretty sure MOST people had no idea Mahomes father was a MLB pitcher until it was said when he was drafted. The kid had serious arm talent in both baseball and football, and that's what caught the "professionals" attention.
"When your only tool is a hammer, everything gets treated like nails." The "one-size-fits-all" approach to defense doesn't work - especially only playing Cover 2. Showing a base scheme then transitioning out of it at the snap (if you have the talent and intelligence to do it) would be much more effective.