It is signed, I can only approved.
That being said, if a large polearm (which most were designed to be able to hook weapons or limbs) is unable to cause a stagger, I fail to see how an arrow would. That being said, all stagger should be removed if polestagger was (or bring back polestagger). It should be sufficient to have the interruption animation if hit with a projectile versus being staggered for a full second. This was brought up when the polestagger nerf talks were happening, and was never addressed.