And the players and the league pay commensurately higher premiums because the NFL is dangerous. They’re still entitled to disability benefits
That said, CTE is real. The damage concussions do was not understood when I played my one year in high school. I got my bell rung when I took a knee to the helmet by a teammate. Coach kept me out and luckily it was late in the game. My head hurt for a few days
I got 2 other minor concussions in college from a motorcycle accident and intramural football. I worry to this day about the cumulative effects of those concussions