Arson used to be just homes and then ( I presume) hit some period of randomness, now you have the option of choosing. Would it be unbalancing to allow the same ability for Night Strike and propaganda? A penalty for being particular about targets, but allowing the option to choose might be better for the game. I don't particularly see a logical reason why it should be random.
I can see reasons why some might think that is making these too strong, But I think that balancing it with penalties similar to arson could solve that.