If you can understand this, you will understand why Riot is a complete failure at player reform.

We know that most negativity in game comes from a misstep

Why is it then, no one gets perma-banned for making a "misstep"? Get rid of the "misstep" and most of the negativity is gone.

Under this current system, we are allowed to cause negativity. While perma-banned for being negative. You are allowed to give someone cancer. If you have cancer, you will be executed.

we owe these players frank feedback about unsportsmanlike conduct, **and a chance at **gaining some self-awareness and growing as players and part of the community

If you cure your cancer "quickly", we won't execute you. You are still allowed to give other people cancer. If you get cancer again, you will be executed immeadiately.

we shoot penalized players a reform card explaining why other players think they should be penalized, but not an idea of how to change and grow. That gap is important for us to fill.

Stop allowing people to give me cancer, and I might grow. Keep allowing people to give me cancer, and I won't grow.

There is another option. Let me live with my cancer. Don't execute me. I might grow.