It says they are coming up with new "norms" to use going forward. I am shocked that the NFL isn't just doing individual cognitive testing on yearly basis to map TBI and Cognitive issues. Then they wouldn't have to worry about biased norms. It's not that many people in the grand scheme of things. The DOD does before tests on every service member deploying and will do another test if anything even remotely concussive happens. I guess I can kind of understand racial norming in the 90's (that was the norm then, after all) but there's no excuse for any kind of norming now, and going forward.
As a side note, between stuff like this, the criminality, the rampant sexual assault and harassment issues, the documented health issues (and shady medical practices to keep players playing), and the corruption of the owners and league I kinda question the morality of people that still watch football. At some point you own a little responsibility for the things you support.