Another issue is how long these will last in storage: Copperhead guided 155mm HE was fun stuff to shoot but didn't weather well in the long term. When we were required to fire them, fairly often they went where they felt like and ignored the laser designator - we even had one land in the road and EOD had to deal with it!
I am also curious about Time of Flight - how long will it take this round to get to the target? Enemies tend to be a bit uncooperative about sitting still.
The enemy may think themselves out of range. I’m not sure how maneuverable these projectiles are, but it seems likely you could engage moving targets.
These will be invaluable to invasive squads taking out C&C centers or radar trucks. Not armor. Just drop a squad in, creep into range and fire. No risk to airplanes.