I saw that this morning. Interesting that you had mentioned both of them before this incident. It was an illegal hit, but nowhere near the likes of the Gronk hit. Yes, he blindsided him, in what I assume to be retribution. The taunting after the hit was over the top. Still, the hit was nowhere near as dangerous as Gronks. Part of my issue with Gronk is that IMHO he's better than that, and took out his frustration by applying a severe sucker hit. Cowardly, which I would never have thought I would say about him. He may regret it now, but he meant to do it at the time. In that moment, he was no better than Suh on his worst day.
Look, I like hard hitting football, when it is within reason and within the rules. Ronnie Lott is probably my favorite player of all time, and he dished out some spectacular hits during his day. But they were legal, appropriate, and he usually helped the guy up as soon as the whistle blew. I guess it's a different game these days.