OK, so players have "evolved" to be bigger, faster, and stronger...had to add the irony. Had they played 30 years ago, against each other...I still doubt the injuries would have been greater than say Darryl Stingley's.
Ya know, I feel like I'm defending people hitting one another...so feel free to promote the context.
You'll never prevent accidents like Stingley's, or Mike Utley's or Kevin Everett's, or Dennis Byrd's. They're going to happen, unfortunately, because of the nature of the game.
But you can legislate ways to minimize the situations where those happen.
Stingley was speared by Tatum. That kind of hit is now illegal.
Everett was injured on a kickoff. Those players are now only allowed to line up 5 yards from the line of scrimmage to prevent the momentum they generate when covering a KO.
The other two were freak accidents that you really can't prevent or legislate against.
I think the biggest change people have issues with is the new rules that don't allow players with concussions to go back into the game. I don't see the problem with this when there is scientific evidence that players are exponentially more susceptible to severe brain damage when they take repeated blows to the head in a game. If you're saving a player from a few hits now that can save them from severe mental trauma later, what's the problem with that?