Don't know if this makes you feel better, but I can't think of an update that's made the truck any different than when I drove it off the lot. I don't know what they're updating, but it's not doing much of anything.
That said, I'd be pissed if I hadn't received any of them, just out of principle.
You have to get it out of mannequin mode. I’m in the same boat however I don’t believe mine was a mannequin. I’m told by others here to have the dealership manually install one update and that will trigger the others. My dealership isn’t smart enough to know how to manually install an update so I’m still on an old version and am told my modem will eventually receive them.