That's great southside - 'Off you go to war boys, some won't be coming back because we can't be arsed to train you properly'.
Attrition rates might be 'acceptable' when you are sat in a comfy office far from the front line but not when you are sent off to become one of the statistics.
If you can fly really high and fast then I agree you are safer but helicopters have to do their job close to the ground - strangely the troops don't want to get out at 500' !