I were him, I would be more concerned about my health and career than a playoff run. But that's just me. I can't speak for him.
maybe in hindsight, but as bad as the Marino story is, could you imagine if he spent that first superbowl on the bench? If he's a competitor sitting on the bench with a non-acute injury may be hard on him- that doesn't mean it isn't the right move, but I doubt he's happy with it