Yeah I don't think that comes up too much in the defense because it requires admitting the the US was already doing some pretty horrendous things to civilians outside the atomic bombs which is a rough datum to raise when you're defending dropping the atomic bombs. "Well it's good we dropped them because among the alternatives was a continued firebombing campaign." Kind of feeds into the argument that the very least the US weren't the the unambiguous Good Guys just the Better Guys in a lot of ways. (And lets be clear it's not exactly hard to be better than Imperial Japan....)