IMHO the chap (with its proximity fuse) has enough explosive to divert the incoming large mortar or artillery, but not enough penetration to destroy the round.
From an old US Army Air Defender standpoint, this is just more mother Raytheon crap.
I worked at the Air Defense Board in the early 80s. One of the things I noticed right off the bat was the previous five Board Presidents went to work for Raytheon shortly after retiring from active duty.
I found the "reunions" at testing sites to be quite nauseating.
Somebody should have gone to jail over the money wasted on SGT York. I read the test results.