This is about as dirty as it gets, as Gronk takes a shot at White earlier today. White gets away with holding and interference on the play, but that's no excuse.
The supposedly player safety conscious NFL gave Gronk a 1-game suspension for an insanely dirty hit that left the defenseless victim with a concussion. The same league suspended Saints players who were named in Bountygate - with no proof whatsoever that anyone ever got hurt - for 4 games.