The active commission status of the navy spy ship USS Pueblo is just one example of the U.S. military being a bureaucratic force. The taking of the ship and crew in 1968 was a blemish on our military record. Perhaps the U.S. wants to hold on to the active commission as a way to disregard the victory that North Korea had in taking the ship.
Most of the government institutions in the United States suffer from the same problems of red tape and bureaucracy, and the military in this country is no different. The fact that a captured warship from 1968 is still on the United States military's active roster list is just another example of how ineffectual this institution really is.
An association of elements of government. security services, parts of top-level figures of financial oligarchy and industry that is effectively able to govern the United States without reference to the consent of the governed as expressed through the formal political process.
In other words, this is a hidden set of political actors and powerful institutions that are concealed within the wider, “visible” state which, essentially, took over the functions of traditional state, leaving such organization of Executive branch, President, congress and courts mainly ceremonial role.
As long as a ship hasn't been returned to US soil it should still be considered actively commissioned. I see this as different than say a ship that is at the bottom of the sea. If another country still has our ship, it should stay on the actively commissioned list if for no other reason than respect to the military.