Sounds like they're working fine. Basically works like this.
1 Bomb drops and opens up to drop parachuted sub munition
2 Submunition gets propelled upward after reaching ground
3 Multiple skeets eject out of sub munition, start spinning around seeking a heavy metal object
4 If found detonate and propel towards armored target
a 20 second video of real thing
Although they're altitude and wind corrected they're not a smart bomb....