So, accoring to some of you, jumping off of an 18 inch step ladder, landing on your feet and absorbing the impact with your legs (and every part of you body below your skull) will lead to CTE if you do it enough times? Because inertia.
Well, I think some of you are wrong. Inertia can be slowed down. The OP's idea is valid. Slowing that inertia over a longer distance and greater mass is certainly a plausible improvement.