Without knowing anything about the classified missions of this thing, I can, with complete confidence, say that the program is mismanaged; my guess is the problem is at the very top.
The only unique quality of this vehicle is that it can re-enter the atmosphere and then be launched again. Everything it does while in orbit, including grabbing something to bring back, could be done by something else not unique.
Yet, they have exercised its unique capability only three times, and the rest of the time kept it to activities that could be better done without it.
The alternative is that there really isn't much use for this thing, so they keep it parked in orbit between uses.
The only unique quality of this vehicle is that it can re-enter the atmosphere and then be launched again. Everything it does while in orbit, including grabbing something to bring back, could be done by something else not unique.
Yet, they have exercised its unique capability only three times, and the rest of the time kept it to activities that could be better done without it.
The alternative is that there really isn't much use for this thing, so they keep it parked in orbit between uses.