I have a hard time understanding how experimental philosophy [and here] does anything other than weaken the philosophy of context free logic. It comes close to a history of the present, to ethnography, or soon will be seen to.

The same question applies to the trolley problem. If you're looking for one answer then you're right it's a real problem. This goes back to the first article I read in contemporary philosophy, when a friend got me a subscription to the Journal of Philosophy in 1984.
The military treats decisions like these as part of an officer's responsibility. Call it military utilitarianism. I thought at the time that the next question would involve a discussion of the differences between military and civilian life. When the article simply refused to deal with the question I was shocked. It seemed so obvious, but at the time I was unaware of the rules. It seems likely more and more people will begin asking such questions.