Here's the thing. They flag results, but fines and suspensions should be built around intentions. DB's get flagged all the time for hits to "defenseless" WRs who ducked or twisted at the last moment AFTER the DB committed to a hit...Wentz was moving, Clowney had committed long before the contact. They've long allowed defenders to hit players who are already CLEARLY going down, so that part of the argument is null...Wentz was NOT down at the time Clowney committed. While the end result was H2H hit, it looks more like Clowney tried to lead with the shoulder, and WEntz height/angle was changing as he went in. I don't think there's any reasonable way to call the hit intentionally dirty.
So....hard no on a suspension. I could be convinced of a relatively small fine given the player's history, but the outrage is out of proportion to the actual crime here. Bad miss on the flag, but we see more egregious misses nearly every game