Reinforced lower control arms vs. upgraded/tubular lower control arms?

Old MoPar stock cars ran a "C" Body inner, tied to a "B" Body outer, where the ball joint is located. They were boxed, like the pic above. "C" Body inner was used to use larger diameter T-bars.
Tossing a 3,900 car at 200 mph into a turn at Talladega puts a lot of stress on the lower arm and ball joint.
All this being said, I can't recall a MoPar failure during a 500 mile race.