Freeman Dyson made the same point. He was an intelligence analyst at Bletchley Park during the war and said they were more then happy to encourage Hitler to use all the V2’s he could since they were enormously expensive and did almost no damage compared to ordinary iron bombs. Most of the time they just drilled a hole in the ground.
Obviously fusing for airburts would have changed all that but they weren’t that far ahead, unlike the US...which we demonstrated in the summer of ‘45.
Don't know what the ones fired at the Ludendorff Bridge did for collateral damage.