Just got a kind email from a gentleman with a Rock Hard 4x4 cage and went through the airbag recall process. Not sure what'd it take with a welded in cage, but glad to hear our customers won't face any headaches.

"So I removed the end clamps and loosened the cross bar and got access to the bolt in the top of the dash access hole.
Needed to lift the bar just enough to get clearance for the air bag panel snaps.
Dealership was fine with replacing the air bag as is.
Hopefully this info helps anyone else that has this question.
Take care,
Minh"