Well, it works both ways. When the US can fight a war with few or no casualties, it gets harder to fight a war of attrition against it - which was explicitly part of Al-Qaida's strategy, and not by coincidence, this was the strategy leveraged against the Soviets in Afghanistan.

Also, I think this point in time is similar to the period when the US had the nuclear bomb until the Soviets and others had it too. Right now it gives the US an edge that's disconcerting, but on a longer horizon, every military will have these capabilities.