The coaches were easy because they're under the by-laws, not a CBA. The players are a completely different situation
Which is why the Rog carefully charged them with "off field" transgressions, to try to circumvent the arbitrator as required by the new CBA. Any arbitrator that hears this is going to want to see all evidence before they even get off the ground.
It's clear he didn't think this through or anticipate the push-back.
Heres where Im a little fuzzy. The NFL employs very smart people that I'm sure had this entire process mapped out, especially by the way they handled it. I dont know that the league didnt anticipate the pushback, but I wonder if its straight up arrogance that the NFL thought they would just get away with it.
I don't take Greg Williams, CSP, of Mickey Loomis' silence as any admission of guilt. They don't have due process that the players have access to, and they have no advocate thru the union to defend them. Therefore, just because Coach Payton hasn't called out Goodell doesn't mean he agrees with anything. I've said it before, a coaches union will probably come out of this, ESPECIALLY if this blows up and its discovered that the league manipulated evidence.