Great post OP. The only thing that I would add is that the real contact came on the grab early in the route. The correct call there should have been defensive holding, which is a 5 yard penalty and first down
If you are including the possibility of a big return, then you must factor in a possibility of them muffing the kick, or a fumble as well. It is the Falcons after all. They are prone to do things like that.
You forgot a penalty, which would have pushed them back. I think that you take the 5 seconds that would have come off the clock. DA talking out both sides of his mouth. Keep doing what you been doing, but not on the kick off?