I'm not sure that is true at all. Rogers still looks like Rogers to me. This is just a QB with the weakest group of receivers he has ever had plus probably the worst Oline he has ever, especially with Bakhtiari basically playing the Tyron Smith role for GB this season. Yesterdays game clearly looked like a guy who was frustrated and tried to do everything himself.
This is a game I think the Cowboys should win, but I give the packers a chance if this team comes out a little slow after a bye week. Rogers is still capable of putting up a big game. That said it's an obvious advantage Cowboys at nearly every other matchup. The Cowboys should be able to get consistent pressure. The Packers don't have a great receiver who will dictate coverage, and for the most part the Packers defense has three really good players in Clark, Gray, and Alexander, but have looked like a group of JAGs outside of that.