You might design a system which deploys a pattern of them into the middle of a JORN farm or similar.  But the technology is too heavy for a practical claymore replacement or grenade unless there is a filler with scary velocity out there.  In addition as the rods rotate they're going to miss a lot of space which your infantry targets may occupy.  It was a good concept for its original purpose back in the day but since has been superceded.

v^2