I consider overpaid professional athletes to be stubborn, especially the youngest ones, which are also the best paid ones. I think they will hit as hard as ever this weekend.
Other thoughts: Wide receivers mouth off more than any other position. Well aware of the rules, you think they won't be saying anything when they line up before every play?
If this is all lip service by the NFL, then expect business as usual. A couple players will be made examples of, and then it will go by the wayside.