FFS, the conditions were studied and what do you know? The more concussions have been studied, the more that has been learned! There's nothing negligent in reporting only what is known at the time. Quite honestly, you'd have to be an idiot to think that anything as physical as football wouldn't be bad for your body - or brain - in the long run. If all people are responsible for all other people's decisions & consequences, the human race is in trouble.
The scientifically pathetic part is the "signs of CTE are depression" - I guess half of America has CTE then! Athletes that make it to the professional level often have trouble moving on with their life after sports, head trauma or not. Everybody's All American - watch it - its a nicely done movie that while it claims to not be inspired by Billy Cannon, sure as heck mimics his ordeals pretty well in a round about way ( minus a bit of counterfeiting... ). Point is, most athletes suffer depression when they can no longer do the one thing they knew how to do for most of their life.