If Kyler is still not fully healthy, I'd rest him against the Panthers too.
Next week is the Panthers game, then the Seahawks game, then the bye week. That means if the Cardinals played the rest of the month without Kyler, they would just have to win 1 game to have a 9-2 record heading into week 13.
I don't think Kyler will be out that long, but it just shows how much of a cushion the Cardinals have. They shouldn't rush Kyler if he's not ready.