Look around at the other punishments the NCAA has dished out against other teams in the past 5 years. Do you really believe they will take any additional action against Michigan? If they did, Michigan would expose so many other schools who are doing the exact same thing. Do you truly believe Michigan is the only school that is stealing signs of other teams? Even if not physically in the stands, teams have other means of obtaining information about their opponents. College teams also have a bad habit of being predictable.
As for the Astros, what % cares about an *. ? What % cared if Sosa and McGuire were on steroids? What % cares about bad or missed calls by refs? Are refs going to start calling more fouls, traveling and palming the ball? Is the NFL commish ever going to change the results of a game? No to all of the above.