That’s true but the intent was to preempt action by the league office. i think the penalty will be severe, though not selling the team. They may suspend him without team contact for several months.
I think it's far more likely absolutely nothing happens. The league will say it wasn't an NFL suspension and there isn't sufficient evidence of a breach. Probably in a tiny press release in about 8 months time.
It's he said/he said. Even if Terry has burners that only proves he contacted them, not that Mike sanctioned it. There would need to be a reliable 3rd party to corroborate it. Possibly Keim himself, and he'll be under a heavy NDA.
I found him mentioning Wilks to be odd because Wilks is already "suing" the Cards in his joint complaint with Flores and Wilks has no reason not to have mentioned this before in his grievance.
This just has nothing burger written all over it. It's going to vanish into a deep NFL hole to never be heard about again. This just isn't the kind of thing the NFL bothers about. Heck, even Snyder wasn't suspended with all the crap they had on him.