[MeanWestTexan]

"And everything the New Jersey did in Lebanon was done 100 times better in Afghanistan by B-52s."

I agree.

The chief benefit the NJ had was sitting on/just over the horizon, looking terrifying.

It's a psychological thing.

[Fred Hayek]

It was the same thing with the New Jersey in the Vietnam War. One underground command post withstood several B-52 raids, yet finally yielded upon bombardment from the New Jersey. Think low-tech bunker buster. At the Paris "Peace Talks" one of the North's biggest demands was the removal of the battleship from the theater.
Guided shells have been considered for the New Jersey, including both full caliber and 203mm and 280mm discarding sabot. Guided shells of course were nothing new, one example being the Copperhead, which had a laser seeker. The ground spotter would illuminate the target with a handheld laser.

[Tallguy]

The chief benefit the NJ had was sitting on/just over the horizon, looking terrifying.

If it's over the horizon, then, by definition, you can't see it. But I take your point.