It's 11 of 12 balls, who else would have done it. If you let them play they are in a lose-lose situation. If they lose the Superbowl then it shows that they can't win if they can't cheat (true or not). If they win the Superbowl then there will be critics who figure they found a way to cheat regardless. The Colts got beat bad and if anyone is going to argue that those balls did anything to effect that game will just like silly. Should the Ravens get in? Not unless the same thing happened in that Divisional matchup (Brady was intercepted as well, but nothing about a deflated ball).
You can argue for a redo of the playoffs but that'll never happen. It's just like demanding for all those calls (missed or not) be changed as well. All you can do is move on and fix the problem from happening again. Ban Belichick for next year, take away a first rounder and hope nothing else pops up, but there will likely be other teams and players looking to find a loop hole or push the limit of the rules.