How do you know if none of it went public?

Word of mouth, but if you looked at their twitter and proof presented it was undeniable. If you want to go digging check a french contenders player that there are videos of with an instance of where the aimbot bugged out and started aiming directly at the center of a player with perfect reaction time and movements.

Every other competitive game regularly has public cases of cheaters being caught in pro games, overwatch doesn't.

“Trust me bro”