Haven't read all the posts but as a previous Commander and having sat on a couple of Courts Martial pressing the charges would have been the way to go.
The Military will generally step in, take back possession of their "broken property" and fix it. Not the case for more serious crimes but something like this the Civil courts are happy to give them over to the military. THEN they go through the UCMJ, get a reduction in rank, loss of pay, blot on their record
and really learn a lesson. IF they don't, then they will eventually be discharged and out of the service
The military is generally accustomed to this sort of sophomoric behavior from their younger troops. They don't throw out the baby with the bath water
. IF this was a one-time bad deal and the behavior does not re-occur then after a few performance reports it is quickly forgotten. Military justice can be quite severe and quite lenient depending on the circumstances. Like it or not it generally works.