I'm not saying you are wrong. You of all people know.
I am just pointing out what I was told during my review to get into the 501st. I had to shorten the jet pack straps so that it was snug against the back armor with little to no strap showing.
It's a good bet that Matt's garrison reviewer is different than mine since he is in Washington & I am in Florida. 
I don't even know if he plans to join the 501st.