I'm waiting for someone else to chime in but I don't think these injuries are from cluster bomblettes. These look closer to what a M30A1 rocket would do, which carry 130,000 tiny tungsten bbs.
If he bled out after the hit, he's just a body. A less deadly injury creates more soldiers rolling around in pain waiting for their turn to get every bead picked out.
the reason for this is improved aerodynamics. when you can't control which way a given piece of metal faces, balls offer the least drag of all shapes. this is also reason for why tungsten is used in the first place