No doubt on the equipment, there's more that can be done there.
I'm simply not going to ring the alarm bells like some.
Head injuries can happen in any sport, many happen in sports you wouldn't expect like girls soccer.
If my son wants to play football he can, there's more to gain than lose IMO. I'm not going to bubble wrap him because the possibility exists he could get hurt. That goes for plenty of things not just sports.
As for the science, the prevalence of Alzheimer's in the boomer generation, the brain injuries that came home from our soldiers in the Middle East wars, and the awakening of our major sports to this subject will expedite brain research to new heights in the near future, it's not a hand wave away, it's lots of people interested in solving the problem who 20 years ago didn't give a thought to the subject.