There's often a criticism of the US military doctrine that our weapons are great but are often way more expensive than the thing we shoot them at (as exemplified in our engagement with the Houthis in the Red Sea.)

If anything, the quote you pulled sounds like its talking about highly precise weaponry, and it seems to me that the way to minimize the overall death in a war is to use your precise weapons to take out the most impactful enemy.

Which part of this is different than how you see the world so that reading this quote threw you?

expensive relative to what? a single rifle bullet? jdam kits are not expensive, easy to manufacturer, and there's plenty of 500lb dumb bombs lying around. If a country has access to precision guided bomb tech then I'd say the should be obligated to use it for bombing exclusively.