You clearly want to attack a vet for his service regardless of the facts.
Bush served his full 6 years completely, transferring units is normal in the Guard, when I was in, I even saw a bidding war as another unit was offering us rank if we would transfer to them and accept a totally new MOS.
Can concur with your point about transferring between state units - know someone who is in the process of doing this now, moving from one state to another.