Andrew O’Hehir: “At this point, if Rock doesn’t open the show with a slam-bang musical number, featuring Bernie Sanders, Donald Trump and Bill Cosby in KKK robes, half of Twitter will announce that he sucks. (And if he does, the other half will profess undying outrage.) But he’s the right man for the job; I honestly can’t think of anyone who is better positioned to tackle the #OscarsSoWhite moment with humor and anger and just a little cerebral detachment.”