LOL sorry. I'm only about a decade behind you, so same fate for me. But those are averages. If you started at a high level, you would presumably remain well above average for your age group.
I don't know much about football or its culture, but it seems to have an anti-intellectual streak. Decisions evolve mostly through trial-and-error instead of analytics. I saw a stat showing drastic reduction in field goal attempts within 19 yards. Unless there was a relevant rule change I'm missing, they probably shouldn't have needed decades to figure that out.