Presidents and governors should NOT have the power to pardon people. And if they do it should be ONE pardon per term.
Corruption is a valid point generally. And this question can be raised when discussing pardon for president's family. But is this point valid for this specific case, for the man who already spent 11 years in prison and has no relation to the president?
Either way, obviously, the system has failed.
Or as the commonplace goes, is working as designed.