The VOIDRUNNER'S CODEX is coming! Explore new worlds, fight oppressive empires, fend off fearsome aliens, and wield deadly psionics with this comprehensive boxed set expansion for 5E and A5E!
That's a benefit of that PrC. It doesn't apply to a straight up barbarian. Also, it's not a problem as it has long been clarified. Those new prestige classes are kinda cool though.