A barrel band has never helped a single rifle on the planet shoot better. I'd not bitch about the lack of one on anything.
Agreed, they don't,
per se. But it does in the respect that they provided a superb foundation for anchoring the front sling swivel, which in itself can make up for a lot of other faults by enabling a steadier hold.
Beretta may suck balls, but you can find someone who thinks the same way about every other gun maker, too. There's an ass for every seat.