Yes it is.
You may be on active duty today, but I too served in the military during wartime. I have watched over the decades as key jobs were given to civilians. As a civilian I have, through my civilian career, had to visit Air Force offices where a civilian is running the show and doling out assignments to ‘captains’ and NCOs.
I support gleaning out the civilians entrenched in the military apparatus and making certain that positions are filled by those in uniform.
I don’t believe you have served in any administrative capacity, nor have you been assigned at any time to that cobwebbed Pentagon, so you wouldn’t actually know.
I see some jobs that can be performed by military, but definitely not all of them, not with how military service is structured. There are some high-level IT jobs that require years and years of training and experience. Quite often, service members receive that training, do their minimum time, then leave for a higher-paying civilian job. Now the military has to pay for another person to receive that training and allow for several more years of experience.
Or they can just hire a DAC or contractor and have the expertise there, in that position, for as long as they’re willing to pay for it.