Michigan was involved in a rampant cheating scandal that gave them an advantage against the Ohio State football team and every other team in the Big Ten. Connor Stalions orchestrated illegal scouting operations that clearly aided TTUN in winning games.
After two years, the NCAA finally released its findings in the investigation into Michigan and the cheating scandal surrounding it. They also released their punishments for TTUN. Essentially, the punishments effectively banned Jim Harbaugh from ever coaching in college football again.
That was as bad as the punishments got. There were no vacating of wins, postseason ban, or hefty suspension for Sherrone Moore.