User blog comment:Darkcloud1111/Good Idea, Bad Idea~No Brakes/@comment-10380701-20141027012752/@comment-10380701-20141027020631

Of course it would hurt like hell. But it wouldn't penetrate their aura defense entirely. Also, its attacks are blunt. The Grimm, meanwhile, rely on claws and fang, which presumably, are more likely to penetrate through aura defenses and actually injure.

The Paladin, while auraless, was made from high quality material. It's a mech, not a scrap metal junk. It was clearly designed to be fighting against Grimm, rather than aura-powered individuals. Hell, Oobleck proceeds to massacre tons of them in the latest episode. RWBY requiring teamwork to beat just one shows how weaksauce they are in comparison to the rest of Remnant.

Now you're mistaking the effects of aura for her semblance. Her semblance only appears to work on her weapon (which is dust empowered) or herself. I don't think throwing a crate is really gonna make an impact to Neo at all, who would likely avoid the entire thing by using her semblance if Yang used her semblance.

And that, may effectively make the fight far shorter if Neo started using her semblance.