I had 4 concussions in 3 years...long neck + video games + reckless helmet first hitting = bad.
No one ever taught me how to hit with my shoulder. For years I thought I was unlucky until I learned proper tackling technique as a fan smh.
The rule sucks but he literally speared the guy. Have to protect defenders from hurting themselves.
Ejection is too extreme though unless it's a dangerous hit on the WR. Simple 15 yds should deter a guy from spearing period.