These guys were not ignorant, they actively and intentionally attempted a cover-up of a repeat sexual assault offender. They knew they would receive backlash if anyone found out so they tried their best to keep everyone quiet, even if it meant putting others, including minors, at risk. Their actions were inhumane, and frankly, showed a borderline sociopathic lack of regard for other humans.
"Ignorant" is Toews, Kane, and other players who knew what was going on. They were willfully ignorant to look the other way so that they could keep winning hockey games. While not inhumane to the same degree, it shows some clearly messed up priorities where hockey is held above humanity