For example if a servicemember volunteers for paratrooper school and gets badly hurt on a jump then I'm going to assume the training was necessary because that's what the school is for. The people at the school are experts and it's a waste of military resources to put a trained servicemember out of commission permanently and the school will be held responsible so everyone has a strong incentive to be careful. However it sounded sort of like you were saying a paratrooper unit doesn't need to practice jumping so much because they'll probably never need to do that.
On the other hand if you're saying that the military should more aggressively investigate safer training techniques where that can be done with no loss of quality then I'm all for that. Maybe some training can be done with VR simulations in a wind tunnel before you actually send people up in a plane, awesome.
Also I'm sure you support veteran care, I was just adding that if the military decides some unit is necessary, then they need to train that unit appropriately, and (here's my part) they need to bear the full cost of any potential injury. Given how badly veterans are sometimes treated I felt that should be said.