Indian may have hit some buildings actually. But they don't seem to be destroyed. They said 1000kg bombs were used so they should have been destroyed. Maybe other it was only rockets
A penetrating gravity bomb is NOT the same as a regular Mk80-series bomb, which use about 50% of mass for the explosive filling.Big penetrator weapons don't necessarily carry the biggest quantity of high explosives to bring down all structures. This Spice 2000 variant likely didn't either. Big penetrators spend most of their mass on the casing (to, you know, penetrate). The BLU-109/B, a 2000-lb class weapon uses only 240 kg of explosives (a quarter of its mass).
Finally, if India's SPICE munitions are all-up rounds (not kits), it stands to reason they would be earmarked for high value targets, and therefore would be built around penetrating bombs, not generic HE. That all but guarantees they have low-mass warheads.