He was crazy accurate in college. Had the NCAA record for highest completion % in a game, and had the most completions in a season. I think he had the most passing yards in the SEC until Burrow broke it. I would say he got drafted because of his stats, not necessarily athletic ability. He had 4275 yards and got Kentucky to 8-4.
When 25% of your schedule year over year is straight trash that's a significant competitive advantage. That division has just historically been two of the best ran franchises in the NFL against two of the worst ran franchises in the NFL and the results have conveyed what would be expected.