The federal employee unions have incredible power, often to the detriment of the government.
My understanding is that the consequences of that decision is being felt even to this day. I only know about it because of the recent airplane accident
Look at how the US treats the International Criminal Court today, a legal body it itself helped create after WWII. Not a huge leap to think they will ignore state courts in the US. Who's going to arrest them?
Why would they be?
Having spent most of my life surrounded by military dudes, they support other military dudes. But they very much do not support anybody in DC.