Two unrelated injuries. That’s all. And Cam’s non-peak health is still above most QBs’ peak. He wasn’t even 30 when he suffered and recovered from the shoulder injury. The only thing he’s still recovering from at 30 is the lisfranc surgery.
Plus, I have a feeling Cam is “old enough” to get the calls these days. I don’t think refs are going to be allowing the headhunting on him any more as a result of the past couple seasons’ injuries. They know he’s one of the more bankable players that’s always good for a story of some sort. They’d lose a bit of money if Cam’s career was shortened.