Think about the obvious. If we can initiate, we can initiate under circumstances that minimize "collateral damage." The alternative is the all too common use of women & children as human shields, etc., as well as other contrived efforts to propagandize, at our expense. (Remember the reality that we are often in fire-fights with folk who put a far lower value on human life than does the typical American.)
It is very difficult to conceive of any pro-American reason for such rules of engagement.
In the kind of war we’re asking our guys to fight, its over seconds after it starts, and its the guy that shoots first who wins.