Agreed. Although I suspect that he may have been retained due to the military being totally strapped fighting two wars. It's notable that he'd never been deployed while others have been deployed multiple times, but was about to be deployed shortly. The military has been lowering its recruiting standards for years, to offset the falling number of sign-ups, so it's not a stretch to think that this also may be a symptom of the same problem.
I work for Army physicians and its not unusual for them NOT to be deployed. Most of the doctors I work for haven't been deployed to a war theatre. If you have a serious medical problem, the first thing they do is get you on a plane to Germany then to WRAMC or Brooks or wherever.
The army doctors I think would agree with geezerdonk privately (very privately), but are mostly unhappy that WRAMC is associated with something negative again in the media.
Also, the military hospital system leans more towards politically correctness and away from religious persecution. But I don't see that being most of the issue.