Yeah, but I think historically that's going to be an anomaly brought on by the unipolar moment of US/Western military dominance, not a moment of ethical enlightenment. The US and its allies were so dominant that they didn't really need landmines to win anymore, and landmines are one of the cheapest effective deterrents their potential enemies could use. So it became yet another requirement for acceptance into the "rules based order" that just coincidentally benefits those enforcing the rules over those who have a different ethical perspective.
I'm not saying we should bring landmines back, but "human in the loop" AI warfare will only work so long as our AI maintains the same relative military dominance we've enjoyed for the last few decades. The moment an AI squadron gets wiped out because the human approval couldn't come fast enough, it'll go right out the window.