Indeed. Our troops now also wear really serious body armor, a lot of Kevlar designed to stop fragments and 9 mm bullets, plus at least 2 rifle plates, front and back. Also to a degree I'm not familiar with two small side plates. I've read that the big rifle plates have been saving a lot of lives from normal accidents. And modern helmets are very good, although there's only so much impact one can take without necessarily harming the wearer's head, so we're talking more about grazing rifle hits. But saves also add up---but echoing your point about casualties, they turn some number of deaths into traumatic brain injuries.

The sort of grim side effect of all this is that trauma medicine makes great strides during wars, I seem to remember we've been learning a lot about treating traumatic brain injuries due to the current unpleasantness.